Frequent coughing after catching a cold needs to be treated according to colds and bronchial asthma, such as cough suppression and life regimen, bronchodilation, etc., respectively. The more common cause of coughing symptoms is a cold that develops after exposure to the cold. Although colds are caused by viral infections, antiviral treatment is generally not provided, and dextromethorphan can be used for cough suppression, combined with lifestyle modification measures such as drinking plenty of fluids and paying attention to rest. In addition, it may also be cold air stimulation induced bronchial asthma, in this case, generally take the dilation of bronchial treatment, the use of β2 agonists, such as salbutamol, etc., to relieve bronchial spasm and improve the cough symptoms. The specific cause of the disease needs to be clarified after medical examination, and at the same time in accordance with the doctor’s instructions for treatment.