A toothache that swells half of your face can help relieve the pain by applying localized ice packs to the appropriate area. It is also important to combine the treatment with the doctor’s advice. After the primary disease is treated, the swelling can gradually subside. 1. Acute periapical inflammation: Acute periapical inflammation can cause obvious pain, which can lead to facial soft tissue swelling. It is recommended to go to the hospital stomatology department to drain the inflammatory exudate from the root tip by opening the tunnel. After the inflammation subsides, the soft tissue swelling can be relieved. 2. Wisdom tooth pericoronitis: Wisdom tooth pericoronitis can also cause pain, leading to facial soft tissue swelling. The pain can be relieved by localized ice packs, but also for the treatment of the primary disease, such as peri-coronary blind bag rinsing, to flush out the inflammatory exudate inside the blind bag. With the inflammation under control, the swelling will subside significantly. Tooth swelling caused by half of the face swelling, simple ice can not play a role in treating the disease, it is recommended to hospital stomatology, targeted treatment.