Hello i have a boil in my anus on the left chick near hole its a long time now how to treat it please.

Before treatment...: Could you be referring to fissures, fistula, abscess? Sexually transmitted disease (syphilis, gc, hiv, etc.) should be considered. Hemorrhoids & rectal prolapse can appear as an outward bulging. Anal trauma of any kind may cause mechanical injury. Skin eruptions need to be considered. Evaluation is recommended to distinguish serious versus less concerning reasons for your problem before treatment.