There is no evidence-based medical proof that anal itching can be rinsed with peppercorns + salt water, and specific programs should be taken based on specific causes. Generally caused by the human body anus itching cause has a variety of possible reasons: 1. Eating too much spicy food. Such as chili peppers, mustard, etc., can cause their skin irritation, inducing itching; at this time, you need to avoid eating, more light diet. 2. Allergy. Certain seafood, drugs, etc. can cause part of the human body allergic to produce histamine affect the peripheral nerves and produce itching. At this time, timely away from allergic sources and can take some antihistamines, such as loratadine. 3. Mental factors. Mental over-excitement, depression, neurasthenia, addiction, etc.. At this time should regulate their emotions, if necessary, can take some psychotropic drugs, such as amitriptyline. 4. Fungal, viral infections. Commonly, there are epidermolysis bullosa, warts and other infections. At this time, you can use some anti-infective drugs such as metronidazole, can also be warm water or medicinal water such as potassium permanganate solution and other sitz bath. 5. Sweaty and moist. Stimulation of perianal skin causes persistent itching. At this time, you can use alum powder dry sprinkle the affected area for drying. All of these treatment programs should be used under the guidance of a professional physician after diagnosis and treatment, and should not be used privately and blindly, so as not to aggravate the symptoms.