Methylcobalamin dispersible tablets for toothache is not very useful, although methylcobalamin can nourish the nerve, but the dental nerve is located in the endings of all the nerves, it is difficult for the drug to reach here, so taking this drug is basically ineffective. Toothaches can be treated with oral painkillers, but the best way is to go to the dentist in time. Toothache is a manifestation of pulpitis or apical inflammation, the blood vessels in the pulp cavity or apical area of the tooth are swollen and there is no way to release them, resulting in a lot of pressure, causing severe pain, especially at night the pain will be aggravated. After arriving at the hospital, the doctor will use a dental drill to drill open the pulp cavity and release the blood, the pressure is instantly relieved, which can make the severe pain disappear instantly, and will also seal in the pulp cavity with a certain amount of lacteal inactivator, which can kill the nerve of the tooth while relieving the patient’s pain.