There is no such thing as “the best way to treat a child’s cough with phlegm”. Pediatric cough with phlegm can be caused by acute upper respiratory tract infection, wheezing bronchitis, bronchial asthma, need to be combined with the specific cause of the disease, take honey or hot pear soup to ease the discomfort of the throat, inhalation of glucocorticosteroid therapy or loratadine and other anti-allergy treatment. 1. Acute upper respiratory tract infection: If it is a viral infection, it can generally be self-healing and does not require special medication; if it is combined with a bacterial infection, you need to take antibiotics such as amoxicillin. Coughing up phlegm is the body’s normal way of expelling germs, it is not recommended to give your child cough suppressant, you can take honey to relieve throat discomfort through daily use. 2. Bronchial asthma: Frequent coughing with phlegm and wheezing can also occur. Bronchial asthma can be treated with bronchodilator drugs, such as salbutamol, and inhaled glucocorticoids, such as budesonide. 3. Allergy: it is an important cause of cough and phlegm in children, the general treatment is mainly to avoid allergens, diet should be light and easy to digest. If the allergy is serious, need to take oral loratadine and other anti-allergy drugs. Children coughing with phlegm, may also be caused by other reasons, it is recommended to improve the examination, give targeted treatment or treatment. All of the above medications should be used under the guidance of a doctor.