Ever since a right inguinal hernia repair over 10 year ago I have suffered on and off with a severe burning pain in my right testical and underneath the scar area. Quite often the pain is so severe I can hardly walk or even touch my testicals.
The pain normally starts with a slight tingling sensation below the scar area when I start to become aroused just before an erection occurs. The pain then increases dramatically to the point I can no longer carry on but can take a few hours, sometimes over night before it subsides. If I masturbate the pain does not occur which I find strange.
I have been back to the doctors a few times but all he seems to do is check me again for a hernia or gives me painkillers, which do nothing.

Any advice would be appreciated.