Infection needs to be ruled out, and can be done with urine tests and/or a urethral swab.
I would also consider fungal infections or dermatitis. A urologist or dermatologist can further evaluate any lesions, and prescribe the appropriate topical agent.
This option should be discussed with your personal physician.
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.
www.kevinmd.com