Hot compresses a few days after the removal of an obstructed tooth can accelerate local blood circulation, which can reduce swelling and pain. Teeth that do not erupt normally are called blocked teeth, which may cause bad taste, food impaction, or even secondary infection, and need to be removed in time. Applying hot compresses a few days after removing a blocked tooth can promote local blood circulation, which in turn reduces inflammation and swelling and relieves pain. Usually, ice packs can be applied within 24~48 hours after the removal of blocked teeth, which can reduce localized edema. However, a few days after the removal of blocked teeth, hot compresses should be applied to make the local capillaries dilate, speed up blood circulation, and take away the metabolic substances and pigments deposited in the local area. If there is localized pain, swelling and fever a few days after the removal of the blocked teeth, there may be a localized infection, which requires prompt medical attention.