There are many reasons for children’s cough, which can be respiratory tract infection, allergy, airway foreign body, etc. The treatment is divided into etiologic treatment, symptomatic treatment, surgical treatment and so on. 1. Respiratory tract infections: mostly viral infections, generally no treatment is needed, most of them can be relieved by themselves after sufficient rest and nutrition; if combined with bacterial infections, antibiotics, such as amoxicillin, can be used. Coughing up phlegm is the body’s normal way of expelling germs, it is not recommended to give your child cough suppressants, you can relieve throat discomfort by taking honey or hot pear soup daily. 2. Allergy: Generally occurs after contact with allergens, such as pollen and dust. Symptoms will disappear when allergens are kept away. If the allergic reaction is serious, antihistamines such as loratadine and cetirizine can be used under the guidance of a doctor. 3. Airway foreign body: airway foreign body can stimulate the throat to cause coughing, if the obstruction of breathing, should immediately implement the Heimlich maneuver, if the foreign body is small, can still breathe, should immediately go to the hospital to improve the bronchoscopy and other checks, timely removal through the bronchoscope. All of the above medications should be used under the guidance of a doctor, avoiding self-medication. Children should go to the hospital in time after coughing to get a clear diagnosis.