What does urticaria look like?
Hives are pink swellings called “wheals” that occur in groups on any part of the skin. Each individual wheal lasts less than a day before fading away, leaving no trace. When hives are forming they usually are very itchy, burn or sting. Hives are very common with 10 – 20 percent of the population having at least one episode in their lifetime. 2. What is acute urticaria? The term acute urticaria is used for hives lasting less than six weeks. With this type of hives, the cause or causes can usually be identified and eliminated. The most common causes of hives are foods, drugs or infections. Insect bites and internal disease may also be responsible. Other causes can be physical stimuli, including pressure, cold, heat and sunlight. Foods The most common foods that cause hives are nuts, chocolate, fish, tomatoes, eggs, fresh berries and milk. Fresh foods cause hives more often than cooked foods. Food additives and preservatives may also be responsible. Hives may appear within minutes or up t