Children do not have a cold always runny nose, most of the cases are considered to be allergies caused by chronic rhinitis, sinusitis is the most likely, the treatment treatment usually have the following points: First, should be taken to reduce the local medication to reduce nasal hyperreactivity, such as the use of fluticasone propionate nasal spray nasal spray, 2 times / day, for at least 1 month or more. Second, you can take appropriate oral anti-allergic drugs, commonly used cetirizine hydrochloride drops, loratadine and so on. Third, when the nose is particularly runny, you can use saline nasal spray to clean the nasal secretion, you can clean 3-4 times a day, and there is no need to clean again when the nasal secretion decreases. Fourth, we should pay attention to find the allergens that cause allergic rhinitis, you can do allergen screening, once you find out the allergens, avoid ingesting or inhaling allergens in order to get the root of the disease.