Itchy anus all the time, according to the symptoms and clinical manifestations and relevant examination to determine the cause, and then symptomatic treatment. There are many clinical causes of anal itching, mainly the following: 1, perianal eczema: is a relatively common clinical perianal skin disease, mainly based on the start of red flaky papules, itching discomfort as the main clinical manifestations. The actual fact is that you can find a lot of people who are not able to get a good deal on a lot of things. The symptoms become more pronounced after scratching, with rough skin and bulge-like redundancies. It is a clinical condition in which a decoction of some herbs that clear heat and dry dampness is used to fumigate the area or apply hormone-free ointment, and the perianal area must be kept clean and dry.