Children with tooth decay toothache may need to fill the tooth, kill the nerve, open the pulp drainage or extraction can quickly stop the pain, it is recommended that timely to the stomatology treatment. 1. Tooth decay that does not go deep into the nerve can be removed to fill the corroded part of the tooth, that is to say, fillings can quickly stop the pain. 2. For tooth decay that penetrates into the nerve, it is generally possible to kill the nerve treatment, after drilling the tooth open, put in the nerve-killing drugs or take out the nerve for quick pain relief. 3. Septic pulpitis or abscess can be opened to drain out the pus. 4. If the tooth has penetrated the bottom of the pulp chamber, if the tooth is split, or if the permanent tooth is about to erupt and the baby tooth is decayed, the affected tooth can be extracted to relieve the pain.