Children’s tooth decay gums with pus, is a very common clinical situation, suggesting that the corresponding teeth of children have been apical inflammation, need to go to a professional oral health care institutions, preferably with children’s dental dental institutions for treatment, generally for this tooth has been decayed to produce apical inflammation of the tooth, the application of high-speed turbo drill under the pulp, after the opening of the pulp to make the pulp within the inflammation of the tooth to get a better release, and at the same time Observe the gums to see if the pus subsides. In most cases, after the pulp is opened and the pulp cavity is cleared, the pus in the gums will gradually disappear, and then you can apply root canal treatment on the baby tooth to fill the baby tooth, and then the whole tooth can be filled.