Anal itching and pain is usually caused by parasitic infection, neurodermatitis, perianal eczema, etc. Patients can be treated by medication and dietary care. 1. Parasitic infection: perianal parasitic infection is usually caused by too much bacteria in the perianal area, there will be anal itching, pain and other symptoms, patients can take mebendazole, ivermectin and other drugs under the guidance of the doctor, allergy is prohibited. 2. Perianal dermatitis: Perianal dermatitis is a kind of neurodermatitis, which can lead to anal itching and pain symptoms, patients can use compound flumethasone ointment, tretinoin econazole cream and other medications under the guidance of a doctor, while patients should pay attention to light and easy to digest food. 3. Perianal eczema: Perianal eczema is a kind of non-infectious disease of the anus and the surrounding skin, the patient will have anal pain, itching symptoms, the patient’s diet should pay attention to avoid allergenic food such as shrimp, strong tea, coffee, etc., you can take ofloxacin tablets, loratadine tablets and other medicines under the guidance of the doctor, a few patients may have nausea, vomiting and other symptoms after taking. It is recommended that patients go to the hospital for examination and treatment under the guidance of the doctor. At the same time, do a good job of perianal hygiene cleaning, washing after defecation, keep dry and so on.