1, the cotton roll in the mouth after tooth extraction can be bitten for 40 minutes and spit it out after 40 minutes. It is used to stop bleeding. In general, the cotton roll does not need to be replaced after spitting out. 2, 2 hours after the extraction of water is prohibited, 2 hours after eating warm cool liquid food. 3.There will be a small amount of blood oozing from the wound within 24 hours after tooth extraction, which is a normal phenomenon. If there is a large amount of blood clots, please go to the hospital in time. After tooth extraction, more saliva in the mouth, containing blood will make some patients panic, mistaken for more bleeding, in order to psychological comfort, you can also go to the hospital for follow-up, so that the doctor to assist in screening. 4, after tooth extraction should pay attention to protect the blood clot, 24 hours do not gargle, do not use the side of the extracted tooth to chew food, do not lick the wound frequently, do not repeatedly suck, spit, so as not to increase the negative pressure in the oral cavity and destroy the blood clot. 5, after tooth extraction can generally not take medicine. But in the acute inflammatory period extraction, or trauma, poor general condition, should take some oral antibiotics and painkillers. 6, after tooth extraction generally does not affect the work, you can go to work as usual, but do not engage in heavy labor. Smoking, drinking alcohol has a bad effect on wound healing. As long as the above precautions, tooth extraction wound will heal smoothly.