Please take Enzoflam s-o-s (you can repeat after a gap of 6 hours) if pain persist. Keep the area clean and rinse mouth with warm salt water rinses 4-5 times in a day tilting your head on that side. Avoid chewing from that side for few days. If the pain increases please connect again and would guide you with the antibiotic course as we can't get an X ray done seeing the current scenario so can't rule out the exact reason.
Next Steps
once lockdown is lifted then get an X ray done and get that tooth evaluted.
Health Tips
1. warm salt water rinses
2. keep that area clean
3. avoid chewing from that side
4. take a painkiller and make sure no swelling is there or else the medicine will be changed accordingly.