Infant drooling can be seen in physiological phenomena, respiratory infections, etc. Intervention needs to be carried out according to the cause, such as herpes pharyngitis secondary bacterial infection, anti-infective treatment is needed. 1. Physiological phenomenon: in this age group, the baby salivary glands secrete more saliva, and the swallowing function is not well developed, salivation phenomenon can occur, generally normal, without special intervention, with the growth of age, the above phenomenon can be gradually alleviated. For the eruption of milk teeth of infants, can also appear the above phenomenon, without special intervention, close observation of teething can be. 2. Respiratory tract infections: herpes pharyngitis: often caused by coxsackievirus group A, salivation, anorexia, or high fever may occur. Pharyngeal congestion can be seen on examination, and herpes can be seen in the pharyngeal and palatal arches, etc. For secondary bacterial infections, treatment requires the use of antimicrobial drugs (e.g., cefaclor granules) to fight infections and other treatments. These medications should be used under the supervision of a physician, and it is recommended that the patient be seen by a specialist for evaluation and treatment if necessary.