It is necessary to identify the accompanying symptoms of runny nose and other physical symptoms, and identify the disease that causes it in order to choose the right medication. 1.For example, if the runny nose is caused by allergic rhinitis, you can apply certain anti-allergic drugs such as antihistamines, which are H1 receptor antagonists, and apply drugs such as Seltzer, Xyosmin and loratadine, which can relieve the symptoms of allergic rhinitis. 2.If the runny nose is caused by viral infection, take oseltamivir to relieve the runny nose. 3.If the runny nose is caused by bacterial cold, take oseltamivir to relieve the runny nose. If the symptoms are caused by allergic rhinitis, you can take oseltamivir to relieve the runny nose. 3. If the symptoms are caused by bacterial cold, accompanied by yellow pus nasal discharge or cough and sputum, you can take certain anti-inflammatory drugs such as cephalosporin, ofloxacin, penicillin and other drugs to treat the symptoms.