1 year old baby running watery nose may be caused by allergic rhinitis, may also be caused by upper respiratory tract infection, these two conditions lead to the baby running watery nose for different reasons, the treatment method is therefore different, parents need to distinguish clearly which cause, and then targeted treatment. If 1 year old baby running watery nose is allergic rhinitis, then you can take the baby to the hospital for allergen testing, and then avoid the baby contact with allergens, but also follow the doctor’s instructions for sea saline nasal spray and other general treatment, if necessary, can be applied to antihistamines, such as cetirizine hydrochloride drops, and so on. If 1 year old baby running watery nose is acute upper respiratory tract infection, then you should let the baby more rest, ensure that the amount of milk, if necessary, can be given to rehydration, nebulization, sputum suction, sea salt water nasal spray and other symptomatic supportive treatment. If a 1 year old baby has the symptom of running watery nose, it is recommended to consult a doctor in time to find out the cause, and follow the doctor’s instructions for disposal.