Painful and itchy after a tooth extraction is usually normal; keep your mouth hygienic and sterilized. If there is an infection, antibiotics can be used to treat it. Itchy and itchy teeth are usually normal from 24 to 48 hours after extraction, which may be due to granulation tissue proliferation. During this period, keep your mouth clean and hygienic, and eat and drink with the other side of your teeth as much as possible. You can also use mouthwash to disinfect and prevent inflammation. If there is pain and swelling, it is likely to be caused by an infection, which can be treated with antibiotics such as amoxicillin and cephalosporin. After extracting the tooth and itchy, you can go to the hospital, under the guidance of the doctor reasonable choice of methods to deal with, do not blindly unauthorized treatment.