A child’s cough is often caused by respiratory infections. Taking medication for two months in a row has an effect and may affect the child’s liver and kidney function, cause secondary infections, and so on. Drugs are generally metabolized by the liver and kidneys and then excreted, if the child takes medication for a long period of time, the liver and kidney function may be impaired. During a child’s cough, immunity decreases, and at the same time, due to the long-term use of medication, it may lead to disorders in the body flora, which may easily lead to secondary infections with other pathogenic bacteria. When the child has a cough, long-term medication does not relieve the condition, first of all, to clarify whether the drug is symptomatic, and secondly, should actively exercise, improve physical fitness, reduce the cough triggering factors. At the same time pay attention to maintain enough sleep time, improve the body immunity. So if your child’s cough is still persistent after taking medication, you should consult a doctor in a timely manner, under the guidance of the doctor to improve the relevant examination, to clarify the cause of the disease, symptomatic treatment. Pay attention to the use of drugs under the guidance of the doctor, avoid unauthorized use of drugs, to prevent causing adverse consequences.