Tips for treating runny nose in 4-month-old babies mainly include pressing the nose, hot compressing the nose, rinsing the nasal cavity and improving the environment. If the symptoms of runny nose of 4-month-old babies are still not relieved after taking the above methods, parents are suggested to take their babies to the hospital in time to get a clear diagnosis and then give medication. 1.Pressing the nose: from the perspective of Chinese medicine, if you press the nasal passages and Yingxiang points on both sides of the nose, it has the effect of opening the nasal orifices and you can massage the points appropriately to relieve the symptoms of runny nose. 2.Heat compressing the nose: if you use hot towels Apply hot towels around the nose, because heat therapy has the effect of vasodilatation, can promote local blood circulation, but also has the effect of promoting the absorption of inflammation, can also be to a certain extent to relieve the baby runny nose symptoms; 3, rinse nasal cavity: if the 4-month-old baby runny nose, you can also choose to use physiological sea saline rinse nasal cavity, in order to reduce the nasal cavity pathogenic bacteria, or reduce allergens and nasal contact, so as to reduce the baby runny nose For example, if the baby is allergic to pollen and animal hair, parents need to avoid keeping flowers and pets indoors, otherwise it will easily lead to the aggravation of allergy and thus aggravate the symptoms of clear nose. In addition, you can also ventilate frequently during the non-pollen season, and use air purifiers if possible. The room temperature is generally 20℃-22℃ and the humidity is generally 50%-60%, which can keep the nasal cavity temperature and humidity appropriate and help to reduce the symptoms. 4 months old baby with clear nose may be caused by allergy, infection and other factors, if the clear nose is caused by allergy, you can take oral antihistamine drugs, such as loratadine, under the guidance of doctor. If there is a bacterial infection, cefixime and erythromycin can be applied under the guidance of the doctor for treatment.