Is A Surgery Advisable In Case Of Nerve Damage In Wisdom Tooth?

Hello , I had a wisdom tooth extracted in May which was stitched once completed.The procedure was completed on a tuesday . I had excruciating pain all weekend and was unable to reach the doctor. That Monday I was asked to come in and an abcess had developed , I was put back to sleep so that the it could be burst because awake was too painful to endure.I went back each week following for check up , apparently I was still in discomfort. The Dr say a small bone needed to heal, and that it would eventually protude out so as the hole closed. Eventually the hole closed but the bone never came out. The Dr started to say then that the bone he originally saw no longer had to come out that the small bone which looks like a small dot on the xray I started to have numbing later which I still have right now on my lower lip and some minor pain in the back where the tooth was extracted.Now Im told I have nerve damage and need surgery. But will surgery actually help me at this point?