Mastocytosis, urticaria (also known as dermographism, dermographism or skin written) is a skin disease in 4-5% of the world's population and is one of the most common types of urticaria. The symptoms are caused by which histamine release without the presence of the skin on the surface of mast cells, antigens due to the presence of a weak membrane surrounding the mast cells. Causes the release of histamine that swell the skin in the affected areas. This breaks down quickly and easily print allergic-caused weak membrane generally a red pit (Trim) appear on the skin. Can often cause an allergic reaction to scratching subject, when in fact it is the Act that is scratched a probably because they seem to be confused. These injuries are a subset of Urticaria (hives), which appear in the register, sometimes accompanied by itching. The first outbreak which can not directly urticaria stimulates other parts of the body, scraped or scratched. In a normal case of swelling is without treatment in 15-30 minutes, but in extreme cases Rojas, that you can take, itchy hives from a few hours to days. The underlying cause of dermographism is unknown and can last for many years without relief. Five percent of chronic cases are never solved. Increase in the frequency of observed after prolonged exposure in a microwave oven. The condition can reduce and can treat effectively; However it is often an illness for life. It is not a deadly disease and is not chronic urticaria with dermographism contagious. Symptoms can be induced or worsened by stages of fear, physical stress, tight or abrasive clothing, watches, glasses, heat, cold. Dermographism can be treated with substances (i.e. an antihistamine), which causes the histamine prevent the reaction. It may be that it won't take such a combination bathtub h. or shower can help if it generalized (finished products) and possibly for localized (in a certain area) must be considered. If it does not help for showers, may be a so-called shower eczema. If it is mostly shot in the head, it could be psoriasis. In rare cases, can discover allergy tests, the patient is allergic to the substance. Use biodegradable soaps or hypo-allergenic and laundry supplies can help. With the help of menthol, mixed with aqueous cream is usually a great workaround to reduce inflammation and itching in a localized area. While cromoglycate, which prevents histamine released by mast cells is used topically in rhinitis and asthma, it is not taken orally is effective in the treatment of chronic urticaria. Insect venom can also cause skin reaction. suggests, take small amounts of alcohol can help with itching, or temporarily cause swelling/Hives to decline. Acupuncture and herbs the Chinese have long used to treat hives in Asia. Results of clinical studies of acupuncture and Chinese herbs are not final and are probably the result of the placebo effect, because the study have no control group. . . . . .