Four months ago I had unprotected sex with a women on two occasions. I was just divorced. One month later, I visited my doctor to get tested for all STDs. All checked out negative. Doctor examined me for genital warts and herpes. Nothing was consistent with either. Throughout the past four months I have had these small, shallow ulcer-like spots and/or skin tears under the head of my penis and on the left-shaft that cause serious irritation and tenderness (I'm not sure if my anxiety and stress adds to the effect). No itching occurs, no pus or discharge. It doesn't hurt to pee. I have no pain in my abdomen or elsewhere in my genital area. I have never once seen a blister form or an ulcer result from a blister. My GP and dermatologist on separate occasions say I show no signs of herpes, including the small ulcer-like spots. I asked if I should get a Herpes Select test and they said I could but it was unncessary. My dermatologist requested I use Cortizone cream for two weeks. My dermatologist says my skin condition is not bacteria-related. What could it be? I've had eczema in my face and shoulders that require using Vanicream. I haven't had a problem in over two years. Should I use this location on my penis? What about irritant dermititis or shingles or aphthous ulcers or pemphigus, etc?