Had RCt in the first molar in 2012 and capping in 2019, while caping the dentist took xray &a told the tooth is fine but now after almost 2 yrs suddenly there is constant pain in the RCT treated tooth.. though there is no swelling in the gums just pain but sometimes its severe and have to take the painkiller. Kindly guide the possible reasons and how to pacify it till the corona lockdown gets over and I can vist the denstist. Thank you