For toothache after tooth extraction, ice or cool towel can be applied to the jaw and face on the side of tooth extraction to reduce the sensitivity of nerve endings, slow down the blood circulation, induce vasoconstriction and reduce the exudation from the extraction wound, thus reducing the distension and pain. For a few patients who have difficulty in tolerating pain, pain relief drugs such as diclofenac sodium can be applied in combination. After the patient spits out the hemostatic cotton ball or gauze roll, pain-relieving drugs can be sprayed or applied externally to the trauma surface, and acupuncture and physical therapy can also be performed to effectively relieve the pain. After tooth extraction, attention should be paid to more rest, which can speed up the healing of the wound.