Health Tip: Hives Signal an Allergic Reaction

Hives, medically called urticaria, are red and swollen patches of skin that can appear anywhere on the body. They are usually itchy, may sting, and typically last only a few hours. Hives vary in size and usually appear in groups.

According to the American Academy of Dermatology, a reaction to a drug or food is the most common cause of hives. Nuts, chocolate, fish, eggs, berries and milk are some of the foods most likely to cause hives.

The most effective way to prevent hives is to figure out what is causing the reaction, and to remove it from your diet or drug regimen. A prescription or over-the-counter antihistamine can reduce redness, swelling and itching. In more severe cases, a physician may administer stronger drugs such as epinephrine or cortisone.