Children’s bad breath does not specify what to drink good effect, it is recommended to actively find the cause of bad breath, targeted treatment and therapy. Children’s bad breath, food can not play a therapeutic effect, can only temporarily make the mouth fresh, the key is to clarify the cause of bad breath, in order to deal with the symptoms. Such as children’s bad breath may be related to indigestion, intestinal peristalsis is slow, prompting a large number of food stagnation in the stomach and intestines excessive fermentation caused by bad breath, can adjust the diet, if necessary, follow the doctor’s instructions to take probiotics (such as Bacillus subtilis bacillus granules) to improve halitosis. Children’s bad breath may also be related to oral hygiene, such as long-term oral hygiene care, resulting in dental caries, food residues in the mouth excessive accumulation will cause bad breath phenomenon. It is recommended to pay attention to oral care, diligent brushing, caries timely medical treatment. Children’s bad breath may have other reasons, such as gingivitis, etc., so what to drink alone is not to solve the fundamental problem, should be timely to the hospital for relevant examinations, clear cause of the symptomatic treatment.