Cough and nasal congestion are the most common precursor symptoms of colds, which are divided into three different types: bacterial colds, viral colds and mixed colds. Usually, nasal congestion accompanied by cough is the most typical symptom of viral colds, and antiviral drugs such as ribavirin, ganciclovir and cytarabine can be taken. Anti-bacterial drugs such as respiratory quinolone, roxithromycin, azithromycin, levofloxacin, etc. can also be used if the cough is severe with coughing up phlegm and nose obstruction, accompanied by pus nasal discharge and yellow discharge. In addition to local nasal treatment is also necessary, can use vasoconstrictors such as 1% ephedrine static nasal drops, so that the nasal mucosa congestion and swelling is relieved, contraction, can also be treated nasal non-ventilation. In addition, local nebulizer inhalation can also be done. After nebulizer inhalation, nasal incompetence and cough can be significantly improved.