There are various reasons for facial swelling after tooth extraction, and the ways to reduce swelling mainly include: 1. If facial swelling occurs within one to two days after tooth extraction, consideration should be given to whether there is infection, and if there is infection, timely follow-up consultation should be conducted and corresponding medication or surgery should be performed; if there is no infection, ice can be used to reduce swelling; 2. If the facial swelling is inflammatory, anti-inflammatory treatment or control of inflammation should be performed; 3. If the facial swelling is traumatic, the edema can slowly subside on its own and no special treatment is needed.