Children vomit after taking medication, may be caused by adverse drug reactions or resistance reactions, when there is an adverse reaction, should stop using the drug, medical treatment; the existence of resistance reactions, mainly for general treatment. 1. Adverse drug reactions: parents give their children improper use of drugs, after the use of drugs may appear adverse reactions, may appear vomiting, may also be accompanied by nausea, skin itching, dizziness and other symptoms, at this time you should immediately stop using the drug, and take the child to the doctor in time to check the diagnosis, and timely targeted treatment. 2. Resistance reaction: If the child does not cooperate with the drug, there is a resistance reaction, there may also be symptoms of vomiting, the child should be sufficiently pacified, to be the child mood stable after trying to take the drug again, if necessary, you can follow the doctor’s instructions to change the way of using the drug. Parents should follow the doctor’s instructions when giving medication to their children and use the medication reasonably, do not give medication to the child without authorization to avoid causing serious adverse reactions. If your child develops other discomforts or a poor mental state, he or she should be seen by a doctor in time to avoid delaying treatment.