Children with mouth ulcers should be based on the causes, choose the right treatment method will recover faster, treatment methods are as follows: 1, oral hygiene: oral hygiene is not easy to lead to oral bacteria breeding mouth ulcers, this situation needs to improve oral hygiene, morning and evening to brush your teeth, rinse your mouth after meals, to develop good habits to treat the root of the mouth ulcers; 2, internal fire: the consumption of spicy food will lead to internal fire in the mouth ulcers, this time should adjust the diet, can eat light and nutritious food, such as radish, green beans, tofu, etc., usually drink more water to speed up the metabolism and relieve the symptoms; 3, lack of trace elements: lack of vitamin B12, vitamin B2, iron, zinc and other trace elements can also cause mouth ulcers, this time can be under the guidance of doctors to eat some supplemental vitamins, trace elements of the drug. Usually you can also eat more fresh fruits and vegetables to replenish the body’s nutrition and relieve mouth ulcers; 4, trauma caused by: some bruises, bumps, stab wounds, bites, etc. can also cause oral mucosal damage resulting in mouth ulcers, then you can follow the doctor’s instructions to apply anti-inflammatory painkillers to relieve pain and prevent infection, such as mouth ulcers, such as oral ulcers, nourishing Yin and muscle; 5, low immunity: children often caused by low body immunity during the growth period of mouth ulcers In addition to the above treatment, it can also be given under the guidance of a doctor to regulate immunity, such as pidomod oral liquid, Sophora yellow granules, etc., usually in the diet due to balanced nutrition, eat more lean meat, fruits, vegetables, etc. In addition to the above treatment, you can also follow the doctor’s instructions to apply drugs for symptomatic treatment, such as pain medication lidocaine gel, compound benzocaine gel, etc., anti-inflammatory drugs such as chlorhexidine gargle, cidium tablets, etc., to promote wound healing drugs such as ice borax, watermelon cream, etc.