You can use it externally in moderation.
Because after the local dampness of the anus, it will certainly be accompanied by different degrees of inflammation of the perianal skin mucosa, by applying erythromycin ointment, can effectively relieve local inflammation. At the same time, you can also choose hemorrhoid suppositories or metronidazole suppositories for symptomatic treatment according to different clinical symptoms. If the condition is serious, reaches the indication of surgery or is accompanied by local organic lesions of the anus, surgical treatment is recommended.