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It is known as urticaria, a change in the skin where wheals appear along with itching. It is considered chronic if it lasts for 6 weeks or more.
It can be due to causes related to immunity (allergies, autoimmune diseases, etc.) and others that are not (cold, exercise, etc.). In addition to welts and itchy skin, it can be accompanied by swelling of certain parts of the body, such as the face and tongue.
It is diagnosed by interview and physical examination.
Treatment is based on antihistamines and corticosteroids.
- Greaves M. Chronic urticaria. J Allergy Clin Immunol 2000; 105:664.
- Zuberbier T, Aberer W, Asero R, et al. The EAACI/GA²LEN/EDF/WAO guideline for the definition, classification, diagnosis and management of urticaria. Allergy 2018; 73:1393.
- Gaig P, Olona M, Muñoz Lejarazu D, et al. Epidemiology of urticaria in Spain. J Investig Allergol Clin Immunol 2004; 14:214.
- Kaplan AP. Chronic urticaria: pathogenesis and treatment. J Allergy Clin Immunol 2004; 114:465.
- Sabroe RA, Seed PT, Francis DM, et al. Chronic idiopathic urticaria: comparison of the clinical features of patients with and without anti-FcepsilonRI or anti-IgE autoantibodies. J Am Acad Dermatol 1999; 40:443.
Dr. Abel Andrés Orelogio
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