Urticaria is a condition characterized by itchy skin, reddened areas with defined borders, and swelling of the skin. It can be classified as acute or chronic based on the duration. Acute urticaria usually stays for 6 weeks while chronic urticaria may stay over 6 weeks. In most cases, chronic urticaria can recur frequently over weeks and months.
The most common causes of acute urticaria are allergic reactions to food, medicine, cosmetics or soap, infections, insect bites or stings, environmental pollutants, latex, extreme temperatures, emotional stress, and exercise. The cause of chronic urticaria is often difficult to identify and many times, impossible. However, in some cases, chronic urticaria can be linked to the conditions affecting the immune system or to diseases like hepatitis or cancer.
Urticaria can be mistaken for other skin conditions with similar appearance. However, a dermatologist can help to differentiate and diagnose the condition based on the symptoms, medical history and skin examination.
Urticaria can be prevented by avoiding exposure to any known causes, triggers or allergens. There is no specific treatment for urticaria as in most cases, the symptoms usually subside within a few days. In some cases, use of home remedies can help improve the symptoms like pain, swelling, and itching. If hives are caused by an allergy, then use of antihistamines might be advised. These are medications that counter the immune system’s chemicals released against the allergy.
