Acute toothache fast pain relief is emergency pulp drainage, acute toothache is divided into acute plasma pulpitis, acute suppurative pulpitis, as follows: 1, acute suppurative pulpitis: the disease is characterized by hot pain, cold relief, drinking hot water aggravates the pain because of the increased pressure in the pulp cavity, but drinking cold water will relieve the pain, so in the clinic to see an emergency, often see some of the Patients holding a bottle to drink cold water to relieve pain. 2, acute pulpitis: the pain is more intense. Regardless of which category these two belong to, the treatment plan for pain relief is to urgently open the pulp drainage, the pressure of the pulp chamber for relief, and so on after the pain is relieved, and then further systematic root canal treatment.