I would consider being tested for any infection. Things like a UTI as well as gonorrhea and chlamydia can cause these symptoms. A simple urine test can evaluate for these infections. I would also evaluate the prostate via a digital rectal exam.
If infection has been ruled out, inflammation of the skin (dermatitis) can be considered and treated with a steroid cream.
Without looking at the lesion, it would be difficult to say, but I would have a dermatologist or urologist evaluate it.
Followup with your personal physician is essential.
This answer is not intended as and does not substitute for medical advice - the information presented is for patient education only. Please see your personal physician for further evaluation of your individual case.
Kevin, M.D.
Medical Weblog:
kevinmd_b