To prevent painful blisters on the tongue and gums, attention should be paid to taking children to public places as little as possible during the summer when the disease is prevalent, and educating children to develop good hygiene habits on a regular basis, washing their hands before meals and after pooping; toys and tableware should be disinfected regularly. Do early detection, early treatment and early isolation. If the disease is prevalent in a nursery or kindergarten, first isolate the affected children from healthy children and disinfect the toys with disinfectant solution. You can put honeysuckle, inchi, raw barley, big green leaf (i.e. the leaf of Panax quinquefolium) and licorice into water, boil it and pour it out for 20 minutes and drink it as tea. Three or five days is enough, but children who are weak and prone to diarrhea should not drink it. For children with herpes in the mouth, ulcers, and bad breath, in addition to the above formula, you can also use a decoction of lantern flower, patchouli, raw gypsum, windbreak, and light bamboo leaves to clear heart fire. For children with loss of appetite you can also add malt to the lantern flower formula to appease the stomach. If symptoms of painful corn to blistering of the tongue and gums occur, external washing can be used by boiling wild chrysanthemum, comfrey, groundnut and bitter ginseng and soaking the hands and feet when cooled to a moderate temperature to clear heat, resolve dampness and cool the blood.