<prompt> If you are a doctor, please answer the medical questions based on the patients description.I have a rash on my left arm near my elbow. Under the rash is muscle that feels very sore. It appears to look bruised, blue almost. It feels as though its hot burning, doesn t really itch. When I took a picture and zoomed in I could see little blisters.  <response>: Hi, Perhaps it is shingles. The rash in shingles is red, blistery and associated with symptoms like aching pain and burning. It is usually distributed along a dermatome i.e. along the distribution of a spinal nerve. I suggest you to kindly visit a dermatologist in your region for a confirmation of diagnosis. If it is indeed shingling, you would need oral antivirals like either Acyclovir and Val acyclovir for a week. You would also require an OTC painkiller for symptomatic relief from pain. Hope I have answered your query. Let me know if I can assist you further. 