I have been getting something on my upper thigh that looks like a rash with puss filled blisters that itch like crazy. Before the rash of blisters actually show up, I get this pain that feels like someone is grinding there fist non-stop in my thigh. The pain usually lasts up to about 48hrs then I notice the rash. I have seen 4 different doctors and have been tested for herpes, hiv, hepatitis, shingles, impintigo (not sure of the spellings). All tests came back negitive. I have been percribed numerous different types of medication/creams and nothing seems to help it. Im getting frustrated as it now shows up on all different spots throughout my body, even my face and inside my nose. Please if you have ANY idea of what it might be or what meds would help it the best, im here waiting. Thank you for your time and concern.