I had an additional problem, in that my wound did not heal properly until it was repaired when ds1was 8m. After that I had an uneasy feeling that I was not believed when I said that I was still in pain, because nobody could find anything physically wrong.
I didn't really do anything about the pain. I wasn't willing to pop pain-killers all day every day, and TBH the pain was generally manageable. Are you in pain all the time? IIRC I was not, especially after the repair had healed, but generally only on contact or in certain postions.
After the repair I was given diclofenac suppositories, which were utterly marvelous. You can now get diclofenac tablets OTC (it's called Voltarol), and I find it more effective in general than ibuprofen, but I don't know whether the tablets are as effective as the suppositories for that particular pain. It may sound odd, taking pr by suppository, but it makes sense as (a) the drug is absorbed into the body at the site where it is needed, and (b) it is absorbed straight into the bloodstream, bypassing the digestive system entirely, which means you need to use less of the medication and the liver has less to break down.
Worth asking your dr if the pain fluctuates, so you could just use it occasionally, for the worst peaks of pain?
It was suggested to me that perineal massage could help. But I've never managed to do it.