Medically known as urticaria, hives is an ailment of the skin which causes rings and patches all over the body. Hives are caused by a chemical termed as histamine, which is why red blotches form on the skin surface. These appear in groups and are generally red in color. Hives appear in different sizes, varying on how serious the illness is. It is usually caused when a person is allergic to a particular thing. These may be a particular medicine, nuts, eggs, berries, insect bites, jelly fish, etc. at times, it also occurs due to tight clothes, exposure to extreme weather, hereditary or even sweat. The most common symptoms of hives are swelling on the affected region, itchiness, pain and difficulty in doing routine activity. However, hives can be cured at home retreating to the natural remedies. Learn how to treat hives at home.