Hi
As he is already on antibiotics and pain killer,he can start the treatment swelling will eventually reduce nothing to worry about.
Next Steps
Follow all instructions given by your dental surgeon
Health Tips
For swelling:-
1)Alternative cold and warm sponging
2) Avoid Chickpeas, Brinjal, banana, potato till the RCT is completed
3)Adviced warm salt water gargle
Pain:-
Head elevated position while sleeping
Continue antibiotics