It is normal to feel a foreign body sensation after tooth extraction, usually do not need to be treated, and can be iced in severe cases. After the extraction of teeth, due to the lack of a tooth, there will be an abnormal feeling, after the extraction of teeth may be swollen gums have swelling, before the extraction of teeth will be separated from the gums, so after the extraction of teeth, gums have a mild swelling is normal, there is a foreign body sensation of swelling, if the swelling is not serious you can not deal with the next few days will disappear on their own, if the swelling is serious you can apply ice packs to alleviate the local ice. It is recommended to brush your teeth every day to keep the wound clean after tooth extraction, and to remove food debris, soft tartar and free bacteria after meals to avoid infection and inflammation.