The main reason for the itchy perianal area is, because of the moisture around the anus caused by a common disease around the anus, called perianal eczema. Perianal eczema this disease first of all to keep the anus around the dry, try to avoid moisture, the more humid around the anus the more itchy, and remember to never scratch with your hands, if after scratching it is easy to form an infection. Generally commonly used drugs, such as fungal infections, on the hormone ointment, such as Dakinin cream, or with traditional Chinese medicine lotion to make it drier, or is often said to use alum alum mixed together to form the so-called alum, the use of some of the traditional Chinese medicine treatment methods. If the case is particularly serious, surgical treatment is recommended, taking subcutaneous nerve dissection and perianal drug injection therapy, to be able to reach the perianal area, try not to let it itch.