Hi, I am a 25 year old male and I just noticed a boil at the rim of the anal opening. I do not have a history of any disease and feel very healthy. There is no bloody or puss discharge. I do not have pains passing stools and only slightly pains like when touching a boil on the face when I take my bums close together. I took couple photographs and it is not inside the anal canal but outside. I had such a boil couple months ago and disappeared after a week. I cannot think why I have this infection when i keep the area clean, I was thinking of dabbing the area with diluted hydrogen peroxide and see for a week. Please advice. Thank you!