Conversation: The conversation between human and AI assistant.
[|Human|] My husband has a large hard sac on the inside of his left butt check. It is so large it covers his anus area. He said it hurt a few weeks ago so he put a needle in it and the liquid cam out black. He said it does not hurt now but it did shrink in size after he did that. But it is still very very large
[|AI|]  HI, Dear,Thanks for your query to Chat Doctor virtual Clinic. I studied your query in all the details put forth by you. I understood your health concerns about the treatment for a painful lump on the buttock of your husband. This is because of the Boil with black hematoma due to friction of lump between the butt cheek. Worry as this lump are infectious in nature and spread to nearby area in the butt cheek. Treatment --As the lump is already shrunken, I would suggest you to Consult an ER Surgeon and get the physical examination and his Second Opinion on it, who would Chat Doctor. -Tab-Antibiotic(like Ofloxacin +Ornidazole) with prescription from your doctor.-Anti-inflammatory (like Diclofenac) for 5 days time.-And Surgical