Children’s snot flowing backward into the throat may be caused by enlarged adenoids, rhinitis or sinusitis, etc., which need to be treated by adjusting diet, improving lifestyle, medication or surgery. 1. Adenoid hypertrophy: Children’s snot flowing backward into the throat may be due to adenoid hypertrophy, resulting in snot in the nostrils can not flow out. In this case, you need to eat a light diet, avoid spicy and stimulating food, and if necessary, use surgical resection for treatment. 2. Rhinitis: children’s nasal discharge to the throat may also be caused by rhinitis, need to pay attention to rest, ensure a light diet, while using budesonide nasal spray for anti-inflammatory, amoxicillin and other anti-infective treatment. 3. Sinusitis: children’s nasal discharge back to the throat may also be caused by sinusitis, need to pay attention to light diet, avoid spicy stimulating food, pay attention to rest, can be given to the sea saline nasal spray, nasal negative pressure suction, and the use of amoxicillin and other antiseptic treatment. It is recommended that parents, once the children found the situation of nasal mucus backflow to the throat, take the baby to the doctor in time to improve the nasopharyngoscopy and other examinations, standardized treatment. Drugs may cause side effects symptoms, medication should be used under the guidance of a doctor, do not blindly use drugs.