My daughter has symptoms of a cough that is always bad. It is also possible that the patient has cough variant asthma and instead treats the cough as if it were a common cold and cough. For respiratory infections, the use of anti-inflammatory drugs is often more effective and the cough is easier to treat. However, for cough variant asthma, treatment with ordinary methods for respiratory infections is often ineffective. First of all, you should take your child to the hospital for a bronchodilator test or bronchial provocation test. If the test results are positive, the diagnosis of cough variant asthma can be confirmed and the child needs to be treated with anti-asthma medication, not the usual anti-inflammatory drugs. In addition, you can chew one chewable tablet of montelukast sodium every night before going to bed, which can also effectively relieve the symptoms of cough.