Infants with nasal congestion and phlegm may have bacterial or viral invasion leading to upper respiratory tract infections, causing increased secretions in the throat and nasal cavity, thus triggering the corresponding symptoms, and there are general treatments and medications for such cases. 1. When infants have phlegm and nasal congestion and are in good condition, daily care can be enhanced to promote recovery. Drinking more warm water can help relieve nasal congestion and promote the dilution and discharge of phlegm. Applying hot towels to the nose can promote blood circulation and relieve nasal congestion, and warm salt water can also be used to clean the nose. Diet should be light and nutritious, and keep warm to avoid aggravation of the condition. 2. infants with phlegm nasal congestion is more serious such as more phlegm, severe nasal congestion, you can use drugs such as ambroxol hydrochloride treatment. If the baby’s spirit is poor, crying or fever, severe coughing, wheezing or breathing difficulties, should immediately go to the hospital and timely treatment. Infant nasal congestion with phlegm may also be related to other causes (such as allergic rhinitis, etc.), parents should not self-medication, should be used under the guidance of a doctor. At the same time, you should pay close attention to your baby’s condition, and seek prompt medical attention if the condition is serious.