The symptoms of cough, phlegm and runny nose can be caused by a cold, bronchitis, bronchopneumonia, or asthma or rhinitis. Whatever the cause, symptomatic treatment as we usually say is necessary. Cough: choose cough medicine, including Western cough syrup, Chinese oral cough solution, or some parents like to choose Chinese soup; it should be noted that try to avoid taking multiple cough medicines together, because inevitably there will be the same drug components overlap, causing damage to the baby’s liver and kidneys. With phlegm: choose expectorant drugs, most cough medicines will also have an expectorant effect, and there are also some syrups or granules that tend to expectorate that can be taken orally. In the cough and expectorant treatment, you can also choose nebulized inhalation therapy, nebulized inhalation therapy has a combination of anti-inflammatory, cough, expectorant and asthma. Runny nose: There are very few drugs for infants and children to stop runny nose, and some compound preparations are not suitable for infants and children, mainly because they are afraid that some ingredients in the drugs are harmful to babies. At present, for the symptoms of runny nose, nasal rinsing with sea salt water is very popular. Rinsing the nasal cavity can remove the secretions, allergens and other harmful substances attached to the mucous membrane of the nasal cavity, so that they can breathe naturally and smoothly, and the baby will be much more comfortable and feel better; different nasal rinsing devices can be chosen according to the age and feelings of the child.