### instruction:
If you are a doctor, please answer the medical questions based on the patient's description.

### input:
Hi. I have been experiencing some pain in my upper butt crack. This started about a week ago during a shower when I was sitting down and I thought I d just torn the skin a bit while adjusting my position (scrubbing my feet). I get slight tears in any of my soft tissue or cracks quite often, so I thought that this was the same case here and figured it would as it usually does, just go away after a while. However, the pain has been getting worse not better. I have Crohn s disease because of the types of vit deficiencies that I suffer from most, is why I say that I get tears often and I also get ulcers sometimes pretty bad in my mouth, throat, and once in a while I even get them vaginally. Sometimes if I am shaving and I move wrong I will tear the skin between my pelvic area and upper leg. Probably not describing it correctly. And maybe this happens to lots of people sometimes, however when I do tear the skin even just a little it tends to take sometimes up to months to heal. That is why I didn t think about this one too much. Until tonight I decided to take a close look, I expected just to see a red mark in between the crack but instead I found what look like small lesions or ulcers or whatever they might be. I will say right now that I am free and clear of any STDS, I do know this for a fact as I have been married for 10 yrs and due to my current health conditions even if he were cheating on me we aren t currently active together so that is not a possibility. Besides I m routinely tested anyway just because I have moved a lot lately and any Doctor I see tends to want to rule that out. The redness starts at the top of my crack or right at tail bone and goes down probably about 2 inches. It s pretty skinny, doesn t span more than a half an inch width wise. Most of it is just red and looks irritated almost like a diaper rash. There s just a small section about the size of a quarter that has what look like as I said before lesions or ulcers. They look a lot like the ones I get in my mouth just smaller. They re roundish to oval shaped and it s white in the middle like it s puss but I don t know if that s what it is or not. I have been suffering from Crohn s since 2005. before that I was diagnosed with cancer rhabdomyosarcoma at age 4, I am almost 31 now. I ve seen a lot of stuff with my health and been through a lot. This is new to me. It s got me concerned. I just moved so I don t have a new DR yet and I don t want to go to ER over this unless I really think I need to. I m a little lost.

### output:

Hi, At this area, it may indicate several issues and most common are a colonial cyst or perianal abscesses.  These are inflammatory processes in the sacral and perianal area usually manifested with pain, redness, swelling, fever and pus discharge. Cellulitis is less common and may be present in the sacral area as well.  This is mostly caused by beta-hemolytic streptococcus, and it necessitates antibiotic treatment with Augmenting, or combination of Capitol+ metronidazole.  You should also, apply cold compresses, take nonsteroid painkillers such as ibuprofen 400 mg and rest.  If there is no improvement within 2 days, you should see a doctor and have intravenous antibiotics. Hope I have answered your query. Let me know if I can assist you further. Take care Chat Doctor.  Rammstein, General Surgeon