Urticaria is the medical name for Hives ( Heat Rash ) . Hives are welts (pink swellings) that can potentially arise on any part of the skin. Urticaria is very itchy, and each individual hive will last a few hours before fading away. New Hives will appear as old Hive covered areas fade. Uricaria can present itself as a number of small pea sized Hives or Uricaria can join together covering broad areas of the body. Even though the itch associated with Hives may be intense, the skin is usually not scabbed or broken as a result of the Hives. In some instances people complain that the Uricaria burns or even stings.
Hives are very commonly contracted at least once in a lifetime. Hives do not always occur in surface layers of the skin. In fact, Hives have been found in deeper tissues such as:
Urticaria on the hands looks different because the skin is bound down so tight that it is simply not loose enough to form ordinary Hives. Instead the Hives appear as tiny, itchy pimples. When Urticaria is found in these areas, the Urticaria may develop angioderma (a swelling that is alarming in appearance). Angioderma usually goes away in less than a day.
Consider the following types of Urticaria :
- Acute Urticaria
- Chronic Urticaria
- Urticarial Vasculitis