What can cause a burning se..

I am a 32 year old male with fair skin. For the last 2 weeks, I have had a sensation that is identical to sunburn on the back side of my left shoulder. I can localize the area to about a 1x2 inch size, and it is slightly more painful in the center. Touching it or my shirt rubbing against it increases the pain. I haven't noticed anything that helps. The area of skin looks completely normal, although I do have something like a skin tag or pimple within the area that recently scabbed over (I have some acne like lesions over my upper back, and have had them for a long time). The skin is smooth, no bumps or dryness. The pain is light and normally I only notice it when I am doing something like reading a book. It feels exactly like a mild sunburn.

I do not have any unusual health problems other than ulnar neuropathy (numbness) in my left arm affecting my pinkie and ring finger which began about a year ago.

Father died of pancreatic cancer mid 20s. Mom healthy

I had that happen on the back of my thigh.

Turns out it was a wasp sting, and the stinger was still in my skin. It felt "like a sunburn" for several inches around in all directions. Appearently I had been stung in my sleep.

I went to the MD and he put a solution on it and removed the stinger, and it was back to normal later the next day.

it could be shingles, go to your doctor & have him look at it.