Children’s mouth inside the long white grain, mostly considered to be on fire, thrush, mouth ulcers and other causes, it is recommended to go to the hospital, clear reasons for treatment.1, on fire: usually too greasy eating habits and other causes of fire, will stimulate the oral mucosa of the appearance of white grains. Need to change the bad eating habits, eat more vegetables, fruits, drink more water, usually without special treatment; 2, thrush: most often in infants and young children within 2 years of age, caused by Candida albicans infection, manifested in the oral mucosa appear milky white, slightly elevated plaque film, shaped like a milk lump, no pain, wipe off the plaque film, can be seen underneath the red trauma without bleeding. It is necessary to scrape off the white spot and test it to identify the type of bacteria. Timely medical attention, under the guidance of the doctor to be sodium bicarbonate cleaning, or rubbing ice boron oil, appropriate to take vitamin B2 and vitamin C, at the same time to pay attention to the baby room isolation and disinfection to prevent the spread of; 3, mouth ulcers: the baby’s lack of dietary vitamin intake will lead to the emergence of mouth ulcers, mouth ulcers of the initial manifestation is the white herpes-like material, treatment can be prescribed to be watermelon cream Spray treatment, at the same time can consume the right amount of vitamins, pay attention to local hygiene, commonly used salt water gargle; 4, oral herpes simplex: the child’s mouth will appear dense small blisters, small blisters rupture fusion together will form ulcers, looks like white particles, in fact, is the erosion of the oral mucosa, can be rubbed in the local chrysothemycin glycerin paste, with dacronin liquid gargle, at the same time, can be applied to the class of antiviral drugs. Daily give high energy, easy to digest, rich in nutritional fluid or soft food, pay attention to rest.