hello, you need to visit the dentist and get it checked. get an x-ray done if required. if there is infection to the root of the tooth, you need to get it treated. its better to see the case clinically for proper diagnosis and treatment plan.

Hi sorry for late reply Dear as far as ur symptoms are concerned it seems ur RCT has failed, and you must be having lots of pus/abscess underneath ur tooth

Hi.... Floss at least once a day. Proper flossing removes food particles and plaque from between your teeth, helping to control pain.... Adjust your diet. Avoid food and beverages that can cause your symptoms worse..... Avoid sticky, sugary foods. Schedule regular dental checkups. See your dentist on a regular basis — generally once or twice a year — to have your teeth or dentures examined and cleaned