Paracetamol belongs to the class of antihistamines and can have an anti-allergic effect. It can be used for coughs caused by allergic causes, such as allergic pharyngitis and cough variant asthma, and can have some effect. However, there are many causes of cough, besides allergic factors, commonly caused by bacterial or viral mycoplasma infections, if the disease is caused by such causes, paracetamol will not be able to stop the cough. The diagnosis should be clarified after checking blood count, C-reactive protein, Mycoplasma pneumoniae, chest X-ray or CT examination, and then selecting medication for treatment. If the cough is caused by a bacterial infection, anti-infective treatment with cephalosporins or macrolides or quinolones should be used. If the cough is caused by a viral infection, you can use traditional Chinese medicine, such as compound fresh bamboo liquid, Su Huang cough capsules and Chuan Bei loquat cream.