Baby snot pulling a long time need to judge according to the cause, may be allergic rhinitis, cold and other factors, generally in the treatment of the main drug-based, specific need for symptomatic treatment, the analysis is as follows: 1. Allergic rhinitis: seasonal allergic rhinitis, may be related to pollen allergy, away from allergens or wait for the season to pass will return to normal. Perennial allergic rhinitis, may be related to dust, mites and other factors, in addition to away from allergens, can be under the guidance of the doctor, the use of anti-allergy drugs, such as loratadine. 2. Common cold: If it is a viral infection, it can be cured by itself, and the runny nose itself is the body discharging the germs in the body, and the nasal cavity can be cleaned by hot compresses and saline solution on a daily basis. If it is a bacterial infection, you need to take antibiotics such as amoxicillin. All of the above medications are recommended to be used under the guidance of a doctor and should not be taken on your own.