Small children cough snotty nose with phlegm is mainly based on drug treatment, specific need symptomatic treatment, may be related to viral infection, bacterial infection, mycoplasma infection and other factors, analyze the following: 1. Bacterial infection: most of the above symptoms in small children are due to inflammation of the body, may be related to bacterial infection, if the blood test is clearly a bacterial infection, then you need to use antibiotics under the guidance of the doctor, such as cephalosporin, amoxicillin and so on. 2. Viral infections: Because viral infections are self-limiting, they are not treated with special medications, such as influenza virus, oseltamivir and other medications. 3. Mycoplasma infections: Mycoplasma infections are mainly treated with macrolide drugs, such as azithromycin. If you have a cough with phlegm, you also need to carry out nebulization with the treatment, nebulization of commonly used drugs is ambroxol hydrochloride. All of the above drugs should be taken under the guidance of a doctor, and should not be used on their own. There may be other reasons for a child’s cough and snotty nose and phlegm, so it is recommended to seek medical attention and treatment.