Anal eczema is a common and frequent non-infectious condition of the perianal skin, the cause of which is not fully understood. It is now thought to be an allergic skin disease that is closely related to one’s own constitution and genetics. Most of the patients are allergic and have a higher sensitivity to external and internal pathogenic factors than normal people. For example, localized anal papillary fibroids, internal hemorrhoids and anal sinusitis can cause perianal dampness and form anal eczema. The above characteristics determine the long duration of anal eczema and the high recurrence rate. The patient precautions include the following: 1. It is important to keep the anus locally clean and dry. Can clean the anus with water after the stool, with soft hand towels lightly wipe dry local; available dryer dryer, so as to avoid the anal perineum damp, the prevention and treatment of anal eczema is very beneficial. 2, actively participate in physical exercise, enhance physical fitness, improve physical fitness, while paying attention to the combination of work and rest, to avoid excessive fatigue and mental overstrain. 3, daily life pay attention to loose clothing, diligent washing of the anal part, diligent change of underwear. 4.Avoid stimulating foods, such as fish, shrimp, tobacco, wine, coffee, hot pot, etc. 5, reduce all kinds of anal stimulation, such as hot water scalding, excessive washing, violent scratching, local avoid the abuse of stimulating drugs fumigation or external application. 6.If the symptoms cannot be eliminated by self-conditioning, return to the outpatient clinic for examination and consultation. 7, diligent practice of anal exercise, especially the knee-chest position. 8, eczema is a chronic allergic skin disease, so it is important to prevent recurrence, eczema avoid scratching, and do not abuse ointments containing corticosteroids.