For now take
Rx
Tab diclomol BD for 5days
For extreme pain tab ketorol DT -sos
Sensi gel to be applied on tooth 3-4 times a day for 5-10 mins and don’t rinse or have anything till 30 mins after u apply it
The nerve ending (dentin /pulp ) might be exposed causing sensitivity to the tooth
Next Steps
Visit your dentist as clinical and radiographical examination will give exact treatment plan
It may be either removal of the affected tooth or RCT (root canal treatment) or normal filling