There are three methods to relieve toothache quickly: the first one is to hold cold water in the mouth and then spit it out and rinse the mouth with cold water repeatedly. This method is mainly used to relieve the pain of tooth congestion caused by acute pulpitis. Once the cold water is spat out, the pain will repeatedly worsen. Secondly, you can take the way of acupuncture in Chinese medicine, through acupuncture can numb the nerves, which can achieve a good way to relieve toothache. Thirdly, if there is a big cavity on the surface of the tooth, you can place the pain relief medicine inside the cavity, which can achieve a good pain relief effect. But the above three ways are not the way to cure toothache, they can only relieve toothache in a short time. If you want to cure the toothache completely, you need to go to the dentist and have the root canal treatment performed by the doctor.