Hi, around mid-August, I noticed a small red pimple under my right breast. A couple of weeks later, it developed in to a round-shaped ringworm looking rash. It began to itch. I started to put Cortizone 10 cream on it, but it didn't help much. On October 10th, I went to the dermatologist. Where the original site of the bump-turned- rash began, the dermatologist stated that it had "lichen plaques" there, and around it was a localized maculopapular rash. It is itchy and red, and has spreaded (bigger oval shaped rash). It's been over 2 months now and it's still there. My dermatologist thinks it could be an allergic reaction to something, and took a biopsy. I'm waiting for the results. I also took an HIV test (I had an unprotected vaginal sexual encounter 4 weeks ago), but my results have not come back yet. I have no other symptoms. Could this be HIV-related? Any insight you can provide would be helpful. Thanks!