Perianal itching is caused by perianal eczema, perianal ringworm and common perianal pruritus in the elderly. According to different itching manifestations, different treatment options need to be chosen: 1. perianal eczema, the cause of eczema needs to be removed, Chinese herbs can be chosen, such as Chinese herbal sitz bath fumigation or Chinese herbal rubbing, which can play a good therapeutic role. Generally, hearthglass lotion is chosen to treat perianal eczema, or Chinese herbs that clear heat and detoxify, clear heat and dampness, by decocting and fumigating with medicinal soup, also play a good role in treating eczema. In the treatment of eczema, treatment is one aspect, preventive care is more important, the perianal area should be kept locally clean and dry, which is a very good means to prevent anal itching; 2, perianal ringworm is caused by perianal fungal infection, you can choose the treatment of fungal ointment to treat perianal ringworm; 3, for elderly perianal itching, you can choose local drug closure treatment, which can play a very good effect.