Mouth ulcers children can not eat and vomiting can be daily care and medication, to avoid the symptoms worsened, affecting the child’s physical recovery. 1. daily care, mouth ulcers children can not eat vomiting usually can be appropriate to give the child to eat some light food, it is best not to eat too much at once, eat more, and also need to give the child to drink more water, appropriate drink some ice-sugar pear water, to promote the body to recover. 2. medication, mouth ulcers after the emergence of the situation is more serious can be used under the guidance of the doctor medication, such as cidadex iodine tablets, chlorhexidine solution, etc., to avoid the worsening of the child’s mouth ulcers, affecting the daily life. Usually need to observe the child’s physical condition, if there is any abnormality, it is best to consult a doctor in time.