Children coughing badly can be treated by etiologic treatment (anti-infection and anti-allergy, etc.) and symptomatic treatment (relieving cough and resolving phlegm, etc.). 1. Etiological treatment: (1) infectious diseases, viral infections are generally self-limiting, can be symptomatic treatment, drink more water, pay attention to rest; bacterial infections are generally used penicillin, cephalosporin antibacterial drugs; mycoplasma infections, the use of erythromycin, azithromycin and so on. (2) other causes, such as allergies, try to avoid contact with allergens; smoke odor environment, pay attention to indoor ventilation, improve the air environment; sinusitis, nasal irrigation, oral anti-allergy drugs (cetirizine hydrochloride drops) if necessary. 2. Symptomatic treatment: you can use cough and phlegm drugs, such as bromhexine hydrochloride, acetylcysteine and so on. Children coughing badly for a variety of reasons, try to take the child to the hospital in a timely manner, the above drugs need to be taken under the guidance of a doctor.