When a 3-year-old child develops cough and sputum, the following medications can be taken to make the symptoms improve as soon as possible: 1. Amoxicillin granules with anti-inflammatory and antiseptic effects should be taken to treat cough and sputum caused by inflammatory infections of the trachea and bronchi and other respiratory tracts. If the child has a history of penicillin allergy, he can take azithromycin dry mix suspension for treatment.2. At the same time, he also needs to take pediatric cough and phlegm granules, which have the effect of relieving cough and phlegm to relieve the symptoms of cough and phlegm. You can also take carboxymethylstilbestrol granules for treatment. If the child’s cough and phlegm symptoms are severe, it is best to use nebulization to relieve the symptoms. Parents should also pat the child’s back more often to help expel the phlegm and relieve the symptoms.