Drinking toothache causes after caries, pulpitis, wisdom teeth pericoronitis, dental trauma and so on. Patients need to go to the hospital in time to determine the cause of the disease. 1. Dental caries: also known as “tooth decay”, is caused by the mineralization of the hard tissue of the teeth. When drinking alcoholic stimulating food, it will stimulate the decayed tissues and even the deeper tissues of the teeth, resulting in pain. 2. Pulpitis: Inflammation of the dental pulp. The pulp is rich in nerves and can become painful when stimulated by alcohol. 3. Wisdom tooth pericoronitis: mostly seen in the inflammation and swelling period of wisdom teeth, under the stimulation of alcohol will cause pain. 4. Dental trauma: If the trauma leads to hidden cracks, broken teeth, etc., pain symptoms may also occur under the stimulation of alcohol. It is recommended to stop drinking immediately after the symptoms of drinking toothache, identify the cause of the disease and then treat the symptoms, so as to avoid delaying the condition.