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 shingles, you would need oral antivirals like either Acyclovir and Valacyclovir 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.