Hives

Hives, known medically as urticaria, are an uncomfortable skin condition characterized by itchy raised areas on the surface of the skin. These areas, which are referred to as weals, usually appear reddish or purplish in color and can range in size from a few millimeters to a few centimeters. It is unclear why hives develop; however, certain triggers, such as certain medications, foods, environmental allergies, insect bites, infections, stress, and changes in temperature or humidity can cause hives to appear. Hives most commonly appear suddenly and can be itchy and uncomfortable. In most cases, hives will resolve quickly and the patient will be symptom free after a few hours. However, some cases of hives can last for longer periods of time and can be chronic in nature. In the case of chronic hives, an allergist or dermatologist should be consulted for further diagnosis and management of this condition. An allergist will conduct an assessment and may employ various tests, such as blood tests, skin biopsies, or an elimination diet, to determine the underlying cause of hives. The objective of management is to identify and avoid triggering factors that can cause hives as well as to reduce the inflammation and itching. Most mild cases of hives can be managed with over-the-counter antihistamine medications. In more severe cases, topical hormones or oral steroids may be prescribed to reduce the inflammation and itching of hives. In summary, hives are a relatively common skin condition that usually resolves quickly. In the majority of cases, over-the-counter antihistamines and avoiding potential triggers can be helpful in managing hives. In more severe cases, an allergist or dermatologist should be consulted for further evaluation and treatment.