Rash on my abdomen

I am wondering if this is related to my UC or something else. I am not usually prone to rashes. Monday night I got home from work (teaching) and suddenly realized I had a rash on my neck and mainly on my abdomen. My neck rash is about 1x3 inches and my abdomen is more like 3x5-6 inches. It is raised, red, itchy, and merged together, particularly on my abdomen. Earlier Monday night I was teaching and I had an attach of abdominal pain, like large pockets of trapped gas. I have not had that in a while. I wanted to bend over and felt like it was all I could do to keep talking/lecturing and not pass out from the sharp pains that lasted for about an hour. Maybe the two are not related but it seems like they could be. I had eaten a homemade bean burrito with "veggie meat". I don't eat them often but it is a quick meal before class to hold me over till later. I don't think it is a food allergy as I have eaten them before. Also I am not using a new laundry detergent. I have tried searching online but have not found any answers. If anyone has had a similar experience or any suggestions I am open to them. I guess if I still have it next Monday I will call the doctor. I feel fine otherwise.

I agree that if it's still there in a day or so to contact your doc. Take an antihistamine to ease the itch and if the rash gets worse or becomes mega itchy, contact your doctor sooner.

And FYI, allergic reactions can occur at any age and at any time regardless of past history of no reactions.

I had rash on my back and hips a few months ago. Not sure if related to UC. Went away with skin cream, but I still itch on these areas and some other parts of my body.

Hmmm. Maybe it is similar. Could be. I guess a rash is an inflammatory response, which is what UC is. Mine has not changed. Luckily it does not constantly itch. Tomorrow I am going to buy some benadryl and see if that helps, maybe some lotion too. I also am currently not flaring. I just worry it could be some precursor. I will try to stay optimistic.