normally in my experience, only 2 day........
but I saw some patient have pain for 1 week...........some will be 2-3 days......
if you still pain after the day 3, you should call the dentist and ask them you need to take some pill or not........
To help the would heal faster, use 1 teaspoon of salt to a glass of water (250ml)........
use the salt water to soak and gentle split out......dont use force in rinsing.......other it will bleed again........you can use salt water 3-4 times a day.......help to reduce inflammation of the would.......then your pain will reduce quicker.......