A rash that occurs on penis skin can be a relatively harmless thing particularly if the rash is truly a rash and not an open sore or bump; is relatively painless and begins to disappear after a few days. However, a penile rash depending on its nature can require medical treatment but the majority of rashes come from frequent masturbation, aggressive sex or rough, even tight, clothing and allergies and often can be treated at home using a penis health creme which will help protect against many of the more innocent causes of a penis rash.

Yes, the best way is to see your doctor and have a test. If you really do not want to let your doctor see this, you may try to contact STD counselor at HerpesFish.com to see if he can give you some comments.