Half a month after the extraction of wisdom teeth, headache may be caused by dry socket or nerve damage, treatment methods include thorough debridement, nerve nutrition, etc., as follows. 1. Thorough debridement: If the headache is caused by dry socket syndrome, 3% hydrogen peroxide solution cotton ball should be used to wipe the extraction wound repeatedly to remove the corrupted and necrotic material, rinse the socket with saline, and after thorough debridement, use iodine imitation gauze to fill the socket tightly to isolate the external stimulus to achieve the purpose of pain relief. 2. Nutritional nerve: If the headache is caused by nerve damage during tooth extraction, it should be treated with nerve-nutritional drugs in time, such as vitamin B12 or vitamin B1, and the above drugs should be used under the guidance of the doctor. Pay attention to rest in life and avoid spicy and stimulating food. Half a month after the extraction of wisdom teeth still feel headache may have other reasons, it is recommended to go to the hospital, the use of drugs need to follow the doctor’s instructions.