Urgent help. Do I need to ext this molar

I have severe pain in second molar 47 which is mostly around the gums margin. The gum is throbbing so much  and very painful for 2 years now. Probing that gums and touching with hands all hurts so much.little swollen and inflamed. I took X-rays and they are ok as per dentist. When he pressed 47, it was so painful. He probed& rubbed that gum and i just screamed in pain.Gums are so painful than the tooth. He said I can extract this tooth as it shouldn't be painful for pressing down. I have pain in the lower jaw end where the jaw line ends Been having this pain for 3 years now. After the jaw pain started, #46 was hurting for pressure and nothing seen on that xray and cbct scan. So they did RCT and retreatment & nothing changed. I extracted #46 few months ago and still have pain in that socket area and jaw pain near ear. Now I have severe throbbing pain in gum around the tooth 47. Do I need to extract it asap? Or RCT will help? Dentist told to do SRP. Whether that will take away pain?