Since the diagnosis is well known to us , you shud undertake the treatment ie extraction which will help in curing all your troubles

You should not opt for medications for temporary relief because the damage caused by the infection will continue to occur unabated. The most prudent step would be to get the objective treatment done in the form of extraction of the offending tooth so that your symptoms are alleviated permanently. And the dentist who has done the X-ray and taken the clinical history will be the best judge to prescribe a medication. Regards