The gums of long 6-year-old teeth are usually only congested and not very painful. In children, the first molar of the permanent teeth starts to erupt around the age of 6 to 7, i.e., the 6-year-old teeth. Because the 6-year-old teeth are behind the second molar, they can erupt directly without replacing the original milk teeth. When the 6-year-old teeth first erupt, the gums near the tips of the teeth may become mildly bloodshot, but children usually do not experience discomfort. If the 6-year-old teeth are not fully erupted, there will be a blind pocket formed between the gums and the surrounding, at this time the child poor oral hygiene caused by food debris and other residues retained in the blind pocket, easy to cause pericoronitis, obvious pain symptoms, can be relieved by local rinsing, applying iodized glycerin, and take anti-infective drugs (such as amoxicillin). When children grow 6-age teeth with painful symptoms, they should consult a doctor in time and standardize the treatment under the doctor’s guidance. In addition, the medications mentioned above should also be used under medical supervision.