Hi.. Being an oral surgeon, I'm very well aware of this.. First thing, your medications might be irregular. Hence the pain.. Secondly, maintain proper cleanliness. Thirdly, use hot compresses/fomentation on your operated side. Warm saline rinses should do wonders.. All this is assuming your extraction was done following proper protocol.. Take care
Next Steps
Do visit the operating dentist once..
Health Tips
Maintain hygiene