How long does it take to bite cotton?

Under normal circumstances, after pulling out teeth, cotton balls should bite for half an hour, that is, 30 minutes. After biting for half an hour, cotton balls should be spit out. After two hours, they can eat. It is generally recommended to eat warm porridge or warm noodles on the day after pulling out teeth. This liquid or semi-liquid diet. Pulling out teeth the next day is able to eat rice, but can not use tooth extraction side chewing, should use non-tooth extraction side chewing, and can not eat spicy, can not eat fire, can not eat particularly irritating diet, we should light diet.