I have a sore at the top inside right butt cheek. It s dark brown ring with a white center and doesn t pop or drain anything. I did lance it a tiny bit with alcohol and a sterilized needle. It only bled. Im not exactly sure how long it was there before I noticed it, but it has been about 2 weeks since I became aware if it. It has not grown in any way since then. The area itself is tender and my buttock and leg ache as if I have sore muscles.