{"id":66315,"date":"2026-06-18T18:18:33","date_gmt":"2026-06-18T17:18:33","guid":{"rendered":"https:\/\/www.mediconanet.pt\/?p=66315"},"modified":"2026-06-18T18:18:33","modified_gmt":"2026-06-18T17:18:33","slug":"urticaria-cronica-guia-completo-2026","status":"publish","type":"post","link":"https:\/\/www.mediconanet.pt\/en\/urticaria-cronica-guia-completo-2026\/","title":{"rendered":"Urtic\u00e1ria Cr\u00f3nica: Guia Completo 2026"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"66315\" class=\"elementor elementor-66315\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-91fc278 e-flex e-con-boxed e-con e-parent\" data-id=\"91fc278\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-0f65790 elementor-widget elementor-widget-html\" data-id=\"0f65790\" data-element_type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t\t<script type=\"application\/ld+json\">\r\n{\r\n  \"@context\": \"https:\/\/schema.org\",\r\n  \"@type\": \"FAQPage\",\r\n  \"mainEntity\": [\r\n    {\r\n      \"@type\": \"Question\",\r\n      \"name\": \"A urtic\u00e1ria cr\u00f3nica \u00e9 alergia?\",\r\n      \"acceptedAnswer\": {\r\n        \"@type\": \"Answer\",\r\n        \"text\": \"Na maioria dos casos, n\u00e3o. A urtic\u00e1ria cr\u00f3nica espont\u00e2nea tem base autoimune e n\u00e3o \u00e9 causada por alimentos ou alerg\u00e9nios ambientais.\"\r\n      }\r\n    },\r\n    {\r\n      \"@type\": \"Question\",\r\n      \"name\": \"Posso tomar anti-histam\u00ednico todos os dias?\",\r\n      \"acceptedAnswer\": {\r\n        \"@type\": \"Answer\",\r\n        \"text\": \"Sim. Os anti-histam\u00ednicos de 2.\u00aa gera\u00e7\u00e3o (cetirizina, bilastina, fexofenadina) podem ser tomados diariamente, at\u00e9 4 vezes a dose habitual, sob orienta\u00e7\u00e3o m\u00e9dica.\"\r\n      }\r\n    },\r\n    {\r\n      \"@type\": \"Question\",\r\n      \"name\": \"Existe tratamento para casos graves?\",\r\n      \"acceptedAnswer\": {\r\n        \"@type\": \"Answer\",\r\n        \"text\": \"Sim. O omalizumab (Xolair\u00ae), um anticorpo monoclonal anti-IgE, est\u00e1 aprovado pela EMA para urtic\u00e1ria cr\u00f3nica refrat\u00e1ria.\"\r\n      }\r\n    },\r\n    {\r\n      \"@type\": \"Question\",\r\n      \"name\": \"A urtic\u00e1ria cr\u00f3nica passa?\",\r\n      \"acceptedAnswer\": {\r\n        \"@type\": \"Answer\",\r\n        \"text\": \"Em cerca de 50% dos casos resolve espontaneamente em 1-2 anos. Noutros, pode persistir v\u00e1rios anos mas \u00e9 control\u00e1vel.\"\r\n      }\r\n    },\r\n    {\r\n      \"@type\": \"Question\",\r\n      \"name\": \"O stress piora a urtic\u00e1ria?\",\r\n      \"acceptedAnswer\": {\r\n        \"@type\": \"Answer\",\r\n        \"text\": \"Sim. O stress \u00e9 um dos fatores agravantes mais reportados, embora n\u00e3o seja a causa da doen\u00e7a.\"\r\n      }\r\n    }\r\n  ]\r\n}\r\n<\/script>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ea80dae elementor-widget elementor-widget-text-editor\" data-id=\"ea80dae\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p><em>Revis\u00e3o: Dr. Igor Faria,\u00a0Especialista em Medicina Geral e Familiar, Coordenador Cl\u00ednico da mediconanet.pt (OM 48611) \u00b7 \u00daltima revis\u00e3o cl\u00ednica: 18\/06\/2026<\/em><\/p><p>A urtic\u00e1ria cr\u00f3nica espont\u00e2nea afeta cerca de 1% da popula\u00e7\u00e3o e \u00e9 uma das doen\u00e7as dermatol\u00f3gicas com maior impacto na qualidade de vida. Manifesta-se por les\u00f5es pruriginosas (\u00abbabas\u00bb ou \u00abvergastros\u00bb) que surgem e desaparecem ao longo de semanas, sem causa identificada.<br \/>Consulte um alergologista online na <a href=\"https:\/\/mediconanet.pt\" rel=\"nofollow noopener\" target=\"_blank\">M\u00e9dico na Net<\/a> a partir de 35\u20ac, sem lista de espera.<br \/><br \/><\/p><h2><b>O que \u00e9 urtic\u00e1ria cr\u00f3nica?<\/b><\/h2><p><span style=\"font-weight: 400;\">Define-se como o aparecimento de les\u00f5es urticariformes (p\u00e1pulas eritematosas, pruriginosas, transit\u00f3rias) durante mais de 6 semanas. Na forma espont\u00e2nea, n\u00e3o existe um desencadeante externo identificado \u2014 ao contr\u00e1rio da urtic\u00e1ria aguda, que est\u00e1 frequentemente associada a alimentos, f\u00e1rmacos ou infe\u00e7\u00f5es. Pode associar-se a angioedema (incha\u00e7o dos l\u00e1bios, p\u00e1lpebras ou m\u00e3os) em cerca de 40% dos casos.<\/span><\/p><h2>\u00a0<\/h2><h2><b>Quando devo consultar um especialista?<\/b><\/h2><ul><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Les\u00f5es com mais de 6 semanas de dura\u00e7\u00e3o.<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Anti-histam\u00ednicos comuns n\u00e3o controlam os sintomas.<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Angioedema recorrente (incha\u00e7o dos l\u00e1bios, olhos, m\u00e3os).<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Impacto significativo no sono, trabalho ou qualidade de vida.<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">D\u00favidas sobre alergia alimentar como causa.<\/span><\/li><\/ul><h2>\u00a0<\/h2><h2><b>Como funciona a consulta online?<\/b><\/h2><p><span style=\"font-weight: 400;\">O alergologista avalia a hist\u00f3ria cl\u00ednica, frequ\u00eancia e caracter\u00edsticas das les\u00f5es, medica\u00e7\u00e3o atual e poss\u00edveis gatilhos. Pode solicitar an\u00e1lises (hemograma, PCR, fun\u00e7\u00e3o tiroideia, autoanticorpos) para excluir causas secund\u00e1rias. O tratamento \u00e9 prescrito com receita digital. Fotografias das les\u00f5es, enviadas previamente, ajudam no diagn\u00f3stico.<\/span><\/p><h2>\u00a0<\/h2><h2><b>Quanto custa em Portugal?<\/b><\/h2><table><tbody><tr><td><p><b>Modalidade<\/b><\/p><\/td><td><p><b>Pre\u00e7o m\u00e9dio<\/b><\/p><\/td><\/tr><tr><td><p><span style=\"font-weight: 400;\">Consulta presencial (privado)<\/span><\/p><\/td><td><p><span style=\"font-weight: 400;\">60\u20ac \u2013 120\u20ac<\/span><\/p><\/td><\/tr><tr><td><p><span style=\"font-weight: 400;\">Consulta SNS (taxa moderadora)<\/span><\/p><\/td><td><p><span style=\"font-weight: 400;\">4,50\u20ac \u2013 7,75\u20ac<\/span><\/p><\/td><\/tr><tr><td><p><b>Consulta online \u2014 M\u00e9dico na Net<\/b><\/p><\/td><td><p><b>A partir de 35\u20ac<\/b><\/p><\/td><\/tr><\/tbody><\/table><h2>\u00a0<\/h2><h2><b>Como marcar na M\u00e9dico na Net?<\/b><\/h2><p><span style=\"font-weight: 400;\">Marcar \u00e9 simples e demora menos de 5 minutos:<\/span><\/p><ol><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Aceda a <a href=\"https:\/\/mediconanet.pt\" rel=\"nofollow noopener\" target=\"_blank\">mediconanet.pt<\/a> e clique em \u00abMarcar Consulta\u00bb.<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Escolha a especialidade pretendida.<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Selecione o m\u00e9dico e o hor\u00e1rio dispon\u00edvel que lhe conv\u00e9m.<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Preencha os seus dados e descreva brevemente o motivo da consulta.<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Efetue o pagamento online seguro (a partir de 35\u20ac).<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Receba a confirma\u00e7\u00e3o por email e aceda \u00e0 consulta por videochamada no dia marcado.<\/span><\/li><\/ol><p><span style=\"font-weight: 400;\">\u27a1 <\/span><a href=\"https:\/\/mediconanet.pt\/marcar-consulta\" rel=\"nofollow noopener\" target=\"_blank\"><span style=\"font-weight: 400;\">Marcar consulta agora na M\u00e9dico na Net<\/span><\/a><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-bc615b6 e-flex e-con-boxed e-con e-parent\" data-id=\"bc615b6\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-c6f7373 elementor-widget elementor-widget-image\" data-id=\"c6f7373\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"800\" height=\"534\" src=\"https:\/\/www.mediconanet.pt\/wp-content\/uploads\/2026\/06\/2149561615.jpg\" class=\"attachment-large size-large wp-image-66321\" alt=\"Urtic\u00e1ria Cr\u00f3nica 2\" srcset=\"https:\/\/www.mediconanet.pt\/wp-content\/uploads\/2026\/06\/2149561615.jpg 1000w, https:\/\/www.mediconanet.pt\/wp-content\/uploads\/2026\/06\/2149561615-300x200.jpg 300w, https:\/\/www.mediconanet.pt\/wp-content\/uploads\/2026\/06\/2149561615-768x512.jpg 768w, https:\/\/www.mediconanet.pt\/wp-content\/uploads\/2026\/06\/2149561615-18x12.jpg 18w, https:\/\/www.mediconanet.pt\/wp-content\/uploads\/2026\/06\/2149561615-600x400.jpg 600w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-e1e8907 e-con-full e-flex e-con e-child\" data-id=\"e1e8907\" data-element_type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-a95c5c9 e-con-full e-flex e-con e-child\" data-id=\"a95c5c9\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-569b314 elementor-widget elementor-widget-heading\" data-id=\"569b314\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Perguntas frequentes (FAQ)<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-deae5b6 elementor-widget elementor-widget-n-accordion\" data-id=\"deae5b6\" data-element_type=\"widget\" data-settings=\"{&quot;default_state&quot;:&quot;all_collapsed&quot;,&quot;max_items_expended&quot;:&quot;one&quot;,&quot;n_accordion_animation_duration&quot;:{&quot;unit&quot;:&quot;ms&quot;,&quot;size&quot;:400,&quot;sizes&quot;:[]}}\" data-widget_type=\"nested-accordion.default\">\n\t\t\t\t\t\t\t<div class=\"e-n-accordion\" aria-label=\"Accordion. Open links with Enter or Space, close with Escape, and navigate with Arrow Keys\">\n\t\t\t\t\t\t<details id=\"e-n-accordion-item-2330\" class=\"e-n-accordion-item\" >\n\t\t\t\t<summary class=\"e-n-accordion-item-title\" data-accordion-index=\"1\" tabindex=\"0\" aria-expanded=\"false\" aria-controls=\"e-n-accordion-item-2330\" >\n\t\t\t\t\t<span class='e-n-accordion-item-title-header'><div class=\"e-n-accordion-item-title-text\"> A urtic\u00e1ria cr\u00f3nica \u00e9 alergia? <\/div><\/span>\n\t\t\t\t\t\t\t<span class='e-n-accordion-item-title-icon'>\n\t\t\t<span class='e-opened' ><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-minus\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h384c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t\t<span class='e-closed'><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-plus\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H272V64c0-17.67-14.33-32-32-32h-32c-17.67 0-32 14.33-32 32v144H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h144v144c0 17.67 14.33 32 32 32h32c17.67 0 32-14.33 32-32V304h144c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-2330\" class=\"elementor-element elementor-element-805e2a2 e-con-full e-flex e-con e-child\" data-id=\"805e2a2\" data-element_type=\"container\">\n\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-2330\" class=\"elementor-element elementor-element-b0de0de e-flex e-con-boxed e-con e-child\" data-id=\"b0de0de\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-ed350d8 elementor-widget elementor-widget-text-editor\" data-id=\"ed350d8\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Na maioria dos casos, n\u00e3o. A urtic\u00e1ria cr\u00f3nica espont\u00e2nea tem base autoimune e n\u00e3o \u00e9 causada por alimentos ou alerg\u00e9nios ambientais.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t<details id=\"e-n-accordion-item-2331\" class=\"e-n-accordion-item\" >\n\t\t\t\t<summary class=\"e-n-accordion-item-title\" data-accordion-index=\"2\" tabindex=\"-1\" aria-expanded=\"false\" aria-controls=\"e-n-accordion-item-2331\" >\n\t\t\t\t\t<span class='e-n-accordion-item-title-header'><div class=\"e-n-accordion-item-title-text\"> Posso tomar anti-histam\u00ednico todos os dias? <\/div><\/span>\n\t\t\t\t\t\t\t<span class='e-n-accordion-item-title-icon'>\n\t\t\t<span class='e-opened' ><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-minus\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h384c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t\t<span class='e-closed'><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-plus\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H272V64c0-17.67-14.33-32-32-32h-32c-17.67 0-32 14.33-32 32v144H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h144v144c0 17.67 14.33 32 32 32h32c17.67 0 32-14.33 32-32V304h144c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-2331\" class=\"elementor-element elementor-element-46d5fd9 e-con-full e-flex e-con e-child\" data-id=\"46d5fd9\" data-element_type=\"container\">\n\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-2331\" class=\"elementor-element elementor-element-260e218 e-flex e-con-boxed e-con e-child\" data-id=\"260e218\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-82a884b elementor-widget elementor-widget-text-editor\" data-id=\"82a884b\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Sim. Os anti-histam\u00ednicos de 2.\u00aa gera\u00e7\u00e3o (cetirizina, bilastina, fexofenadina) podem ser tomados diariamente, at\u00e9 4 vezes a dose habitual, sob orienta\u00e7\u00e3o m\u00e9dica.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t<details id=\"e-n-accordion-item-2332\" class=\"e-n-accordion-item\" >\n\t\t\t\t<summary class=\"e-n-accordion-item-title\" data-accordion-index=\"3\" tabindex=\"-1\" aria-expanded=\"false\" aria-controls=\"e-n-accordion-item-2332\" >\n\t\t\t\t\t<span class='e-n-accordion-item-title-header'><div class=\"e-n-accordion-item-title-text\"> Existe tratamento para casos graves? <\/div><\/span>\n\t\t\t\t\t\t\t<span class='e-n-accordion-item-title-icon'>\n\t\t\t<span class='e-opened' ><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-minus\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h384c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t\t<span class='e-closed'><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-plus\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H272V64c0-17.67-14.33-32-32-32h-32c-17.67 0-32 14.33-32 32v144H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h144v144c0 17.67 14.33 32 32 32h32c17.67 0 32-14.33 32-32V304h144c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-2332\" class=\"elementor-element elementor-element-d94eb4f e-con-full e-flex e-con e-child\" data-id=\"d94eb4f\" data-element_type=\"container\">\n\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-2332\" class=\"elementor-element elementor-element-41ac75c e-flex e-con-boxed e-con e-child\" data-id=\"41ac75c\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-2e5a196 elementor-widget elementor-widget-text-editor\" data-id=\"2e5a196\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Sim. O omalizumab (Xolair\u00ae), um anticorpo monoclonal anti-IgE, est\u00e1 aprovado pela EMA para urtic\u00e1ria cr\u00f3nica refrat\u00e1ria.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t<details id=\"e-n-accordion-item-2333\" class=\"e-n-accordion-item\" >\n\t\t\t\t<summary class=\"e-n-accordion-item-title\" data-accordion-index=\"4\" tabindex=\"-1\" aria-expanded=\"false\" aria-controls=\"e-n-accordion-item-2333\" >\n\t\t\t\t\t<span class='e-n-accordion-item-title-header'><div class=\"e-n-accordion-item-title-text\"> A urtic\u00e1ria cr\u00f3nica passa? <\/div><\/span>\n\t\t\t\t\t\t\t<span class='e-n-accordion-item-title-icon'>\n\t\t\t<span class='e-opened' ><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-minus\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h384c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t\t<span class='e-closed'><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-plus\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H272V64c0-17.67-14.33-32-32-32h-32c-17.67 0-32 14.33-32 32v144H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h144v144c0 17.67 14.33 32 32 32h32c17.67 0 32-14.33 32-32V304h144c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-2333\" class=\"elementor-element elementor-element-d14b2c3 e-con-full e-flex e-con e-child\" data-id=\"d14b2c3\" data-element_type=\"container\">\n\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-2333\" class=\"elementor-element elementor-element-9e50ebf e-flex e-con-boxed e-con e-child\" data-id=\"9e50ebf\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-2e015eb elementor-widget elementor-widget-text-editor\" data-id=\"2e015eb\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Em cerca de 50% dos casos resolve espont\u00e2neamente em 1-2 anos. Noutros, pode persistir v\u00e1rios anos mas \u00e9 control\u00e1vel.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t<details id=\"e-n-accordion-item-2334\" class=\"e-n-accordion-item\" >\n\t\t\t\t<summary class=\"e-n-accordion-item-title\" data-accordion-index=\"5\" tabindex=\"-1\" aria-expanded=\"false\" aria-controls=\"e-n-accordion-item-2334\" >\n\t\t\t\t\t<span class='e-n-accordion-item-title-header'><div class=\"e-n-accordion-item-title-text\"> O stress piora a urtic\u00e1ria? <\/div><\/span>\n\t\t\t\t\t\t\t<span class='e-n-accordion-item-title-icon'>\n\t\t\t<span class='e-opened' ><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-minus\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h384c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t\t<span class='e-closed'><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-plus\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H272V64c0-17.67-14.33-32-32-32h-32c-17.67 0-32 14.33-32 32v144H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h144v144c0 17.67 14.33 32 32 32h32c17.67 0 32-14.33 32-32V304h144c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-2334\" class=\"elementor-element elementor-element-46b2374 e-con-full e-flex e-con e-child\" data-id=\"46b2374\" data-element_type=\"container\">\n\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-2334\" class=\"elementor-element elementor-element-3c05f4b e-flex e-con-boxed e-con e-child\" data-id=\"3c05f4b\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-4a2424b elementor-widget elementor-widget-text-editor\" data-id=\"4a2424b\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Sim. O stress \u00e9 um dos fatores agravantes mais reportados, embora n\u00e3o seja a causa da doen\u00e7a.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<script type=\"application\/ld+json\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"A urtic\\u00e1ria cr\\u00f3nica \\u00e9 alergia?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Na maioria dos casos, n\\u00e3o. A urtic\\u00e1ria cr\\u00f3nica espont\\u00e2nea tem base autoimune e n\\u00e3o \\u00e9 causada por alimentos ou alerg\\u00e9nios ambientais.\"}},{\"@type\":\"Question\",\"name\":\"Posso tomar anti-histam\\u00ednico todos os dias?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Sim. Os anti-histam\\u00ednicos de 2.\\u00aa gera\\u00e7\\u00e3o (cetirizina, bilastina, fexofenadina) podem ser tomados diariamente, at\\u00e9 4 vezes a dose habitual, sob orienta\\u00e7\\u00e3o m\\u00e9dica.\"}},{\"@type\":\"Question\",\"name\":\"Existe tratamento para casos graves?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Sim. O omalizumab (Xolair\\u00ae), um anticorpo monoclonal anti-IgE, est\\u00e1 aprovado pela EMA para urtic\\u00e1ria cr\\u00f3nica refrat\\u00e1ria.\"}},{\"@type\":\"Question\",\"name\":\"A urtic\\u00e1ria cr\\u00f3nica passa?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Em cerca de 50% dos casos resolve espont\\u00e2neamente em 1-2 anos. Noutros, pode persistir v\\u00e1rios anos mas \\u00e9 control\\u00e1vel.\"}},{\"@type\":\"Question\",\"name\":\"O stress piora a urtic\\u00e1ria?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Sim. O stress \\u00e9 um dos fatores agravantes mais reportados, embora n\\u00e3o seja a causa da doen\\u00e7a.\"}}]}<\/script>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-a378b64 e-flex e-con-boxed e-con e-parent\" data-id=\"a378b64\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-ac1af1e elementor-widget elementor-widget-text-editor\" data-id=\"ac1af1e\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<h2>Refer\u00eancias<\/h2><ul><li><a href=\"https:\/\/www.eaaci.org\/\" rel=\"nofollow noopener\" target=\"_blank\"><span style=\"font-weight: 400;\">EAACI\/GA\u00b2LEN\/EDF\/WAO \u2013 International Urticaria Guideline 2022<\/span><\/a><\/li><li><a href=\"https:\/\/cks.nice.org.uk\/topics\/urticaria\/\" rel=\"nofollow noopener\" target=\"_blank\"><span style=\"font-weight: 400;\">NICE CKS \u2013 Urticaria (UK)<\/span><\/a><\/li><li><a href=\"https:\/\/www.aaaai.org\/conditions-treatments\/related-conditions\/chronic-urticaria\" rel=\"nofollow noopener\" target=\"_blank\"><span style=\"font-weight: 400;\">AAAAI \u2013 Chronic Urticaria (US)<\/span><\/a><\/li><li><a href=\"https:\/\/www.dgs.pt\/\" rel=\"nofollow noopener\" target=\"_blank\"><span style=\"font-weight: 400;\">DGS \u2013 Orienta\u00e7\u00f5es dermatologia<\/span><\/a><\/li><li><a href=\"https:\/\/www.ema.europa.eu\/\" rel=\"nofollow noopener\" target=\"_blank\"><span style=\"font-weight: 400;\">EMA \u2013 Xolair (omalizumab) EPAR<\/span><\/a><\/li><li><a href=\"https:\/\/mediconanet.pt\/especialidade\/alergologia\" rel=\"nofollow noopener\" target=\"_blank\"><span style=\"font-weight: 400;\">M\u00e9dico na Net \u2013 Alergologia<\/span><\/a><\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-204bab5 e-flex e-con-boxed e-con e-parent\" data-id=\"204bab5\" data-element_type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-56e1af1 elementor-widget elementor-widget-text-editor\" data-id=\"56e1af1\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>\u26a0\ufe0f Disclaimer: Este artigo \u00e9 informativo e n\u00e3o substitui consulta m\u00e9dica. Perante sintomas, procure sempre orienta\u00e7\u00e3o de um profissional de sa\u00fade.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Urtic\u00e1ria cr\u00f3nica: causas, tratamento e quando consultar. Alergologia online a partir de 35\u20ac na M\u00e9dico na Net.<\/p>","protected":false},"author":13611,"featured_media":66320,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_post_was_ever_published":false},"categories":[250],"tags":[],"class_list":["post-66315","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-dermatologia"],"jetpack_featured_media_url":"https:\/\/www.mediconanet.pt\/wp-content\/uploads\/2026\/06\/2149140484.jpg","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.mediconanet.pt\/en\/wp-json\/wp\/v2\/posts\/66315","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.mediconanet.pt\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.mediconanet.pt\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.mediconanet.pt\/en\/wp-json\/wp\/v2\/users\/13611"}],"replies":[{"embeddable":true,"href":"https:\/\/www.mediconanet.pt\/en\/wp-json\/wp\/v2\/comments?post=66315"}],"version-history":[{"count":6,"href":"https:\/\/www.mediconanet.pt\/en\/wp-json\/wp\/v2\/posts\/66315\/revisions"}],"predecessor-version":[{"id":66337,"href":"https:\/\/www.mediconanet.pt\/en\/wp-json\/wp\/v2\/posts\/66315\/revisions\/66337"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.mediconanet.pt\/en\/wp-json\/wp\/v2\/media\/66320"}],"wp:attachment":[{"href":"https:\/\/www.mediconanet.pt\/en\/wp-json\/wp\/v2\/media?parent=66315"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.mediconanet.pt\/en\/wp-json\/wp\/v2\/categories?post=66315"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.mediconanet.pt\/en\/wp-json\/wp\/v2\/tags?post=66315"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}