35 year old/white male/not allergic to any meds/take 50mg Zoloft daily for 8 years. Facial acne as a teenager. Middle Dec. 2006(2 weeks after unprotected intercourse with a woman,I noticed red pimple-like marks(look like whiteheads) on both sides of my buttocks(no itch)(none on genitals). Waited two weeks(late December) and saw Dr. diagnosed as Foliculitis(never any issues with my skin in this area until now). Prescribed DOXYCYCLINE HYCLATE 100MG CAPSULES. No response. Then prescribed METHYLPREDNISOLONE 4MG DOSPAK 21'S. No response. Began noticing pimples spreading to lower back and to upper shoulder and chest. Began becoming uncomfortable..itching, burning. Saw Dr. again middle Jan. 2007..still Foliculitis(gave me HIV and Syphillis blood test(6 weeks post unprotected intercourse), both came back negative. Prescribed SULFAMETH/TRIMETHOPRIM 800/160 TABS. Provided slight assistance, once I stopped taking these meds...the marks returned. The interesting thing about them is that they will go away for maybe 24 hours and then come back. And I can tell when they are returning because I feel an uncomfortable itching, burning in the area they pop up in. More prominent on buttocks and lower back, but do have a few on my shoulders. I have also noticed that my face seems to be breaking out a bit more in the past two weeks and I just feel a general feeling of itchiness. Woman I slept with supposedly has had a test for all STD's and is negative. I haven't had anything noticable in the genital area. I haven't been running any temperature.