You should also be careful not to eat irritating food, and eat more nutritious things to strengthen your physique. It usually takes half a month. It will definitely be faster to go to the hospital, but it will take money and time to sew your needle, because the wound is not big, and the sewed thread is easily contaminated by food and saliva, which will cause wound infection. Rinse your mouth with warm water and don't brush your teeth for the time being. I wish you a speedy recovery!