Rash? Hive? Shingle?

Would anyone on here know what this is..? It burns and the itching goes all the way from the middle of my stomach to the side of my back. Started 2 weeks ago and doesn’t seem to be getting better. Doctor told me he’s not convinced it’s shingles but not ru

lling it out. The only thing I can think of is my new detergent which I’ve stopped using and new sheets I got..which I will also switch out today.