The best way to treat the skin rash caused by hives is to identify the underlying cause and treat it, as stated by WebMD. The doctor may prescribe antihistamines to help in relieving the symptoms. In most cases, antihistamines are usually used on a regular basis to prevent the formation of hives.
Also known as urticaria, hives are red raised welts that occur any where on the skin. Acute hives usually stay for less than six weeks while chronic hives affect a person for more than six weeks, as stated by KidsHealth. Oral corticosteroids are usually prescribed to treat the hives if antihistamines do not work.
The welts of the hives occur when the mastocytes in the blood release histamine, which triggers tiny blood vessels below the skin to leak. Other cases of hives are linked to allergic reactions, which can be caused by insect bites, pollen, certain medications and certain foods.
Physical urticaria are hives that occur due to stimulation of the skin, which is usually caused by exercise, heat, cold, vibration and exposure to sun, as stated by WebMD. Other causes of hives include scratching, stress, infections and exposure to chemicals. Using cool compresses while waiting for the hives to clear up helps to speed recovery.