Children have been running nose may be cold air stimulation and other physiological reasons, pay attention to warmth to strengthen the care can be, but may also be allergic rhinitis, upper respiratory tract infection, etc., the causes are different, the treatment is different, you can take the general treatment, medication and so on. Children have been running nose may be caused by cold air stimulation, generally do not need special drugs to deal with, pay attention to warmth, maintain a certain temperature indoors, more can be relieved. Allergic rhinitis is a kind of chronic reactive inflammation of the nasal mucosa, also can appear a lot of watery nasal discharge. Daily need to avoid pollen and other allergens, at the same time follow the doctor’s instructions to use loratadine, cetirizine and other antihistamines for treatment. If the runny nose is caused by the upper respiratory tract, the patient may also have nasal congestion, cough and other symptoms. Pediatric aminophenol xanthamin granules and other anti-flu drugs can be used to treat, such as white blood cell elevation, coughing yellow sputum, runny nose and other symptoms, can be used as appropriate, such as cefixime and other antibiotic treatment. Usually need to pay attention to keep indoor air circulation, eat a light diet. Children have been running nose may also have other reasons, such as sinusitis, etc., should be timely consultation, a clear diagnosis, and by the doctor for appropriate treatment.