It is okay for children to drink cough syrup for cough. Normal cough syrup has the effect of relieving cough and resolving phlegm can be drunk, do not drink water within half an hour after drinking, because the role of local laxative. The duration of drug treatment is 3-5 days, so at least 3 days should be drunk to observe the efficacy of the drug. During the period of drinking the medicine children need to control the diet, such as seafood, fish, shrimp, meat, puffing agents, additives, small snacks, small food, fried, greasy spicy, cold, stimulating, spicy food can not be eaten. Eat a light vegetarian diet, eat age-appropriate vegetables and fruits, and pay attention to rest. If breastfeeding the affected child, the mother also needs to abstain from eating together. If the cough is not good for a long time, you can also do nebulization. If the child has other conditions such as fever, and the treatment is not effective for 3-5 days, you need to check relevant blood tests to check for other bacterial infections and mycoplasma infections, and then you need to use symptomatic medication together.