pink skin patch on penis. noticed it on the foreskin about 6 weeks ago after masturbating. went to the dermatologist and he told me it looked like irritation and prescribed westcort. i used it for about a week and stopped because it appeared to have gone away. since, i ve had sex with my fiance and it has reappeared. got an STD test for gonorrhea, chlamydia and HSV 2 and all came back negative. no itching, burning, discharge.