A child’s cough theoretically requires a cough suppressant, but for babies, phlegm and expectorants are usually the main focus. If the cough is not very severe, try not to use cough suppressants. Ordinary cough medicines, such as those that work better for nighttime coughs, can be used in the form of Pediatric Cough Relief Oral Liquid. If the cough is serious and the baby is coughing hard, for example, coughing for a long time and coughing with a red face, so that the baby is not able to sleep and rest quietly, you can temporarily use a central cough suppressant, such as dextromethorphan. However, all cough and cough suppressants are only symptomatic treatment, treating the symptoms but not the root cause. If we get to the root of the cough problem, we must find out what the cause is. There are several common causes of nighttime cough: 1. Problems with the nose, if there is a more obvious nasal congestion, runny nose, can appear after the nasal drip, cough relatively obvious at night, but usually a few or a single cough, cough sound is not very deep, similar to the cough like clearing the throat. 2. If the cough is very hard, cough a large burst, cough after easy dry heaving, nausea, or even vomiting, need to Combine this with whether the baby has other symptoms, such as fever, yellow snot, yellow sputum, etc., to determine whether there are problems in the lower respiratory tract such as bronchitis, and in particular, you need to be alert to the possibility of mycoplasma infection. 3. If the cough at night lasts for a longer period of time and the relief is not obvious according to the treatment of infection, you need to consider whether there is cough variant asthma, a condition that can be considered as allergic cough. Therefore, if the cough persists at night and there is no solution with many methods, you need to ask your doctor for a consultation and a comprehensive and systematic analysis of the entire medical history to determine the cause and then start solving the problem from the cause.