The medication for children to resolve phlegm can take Ambroxol if it is caused by bronchitis, pneumonia, etc. If it is caused by sinusitis, it can take Oral Drops of Olonma. 1. Bronchitis, pneumonia: Inflammation of the airways or lungs can cause phlegm secretion, children can take Ambroxol hydrochloride oral solution or acetylcysteine granules (children under 2 years old are prohibited) under the guidance of the doctor to dilute phlegm and promote phlegm discharge. Allergy to the above drugs is prohibited. 2. Sinusitis: Sinus secretion will flow back into the posterior wall of the pharynx, causing symptoms of phlegm, at this time, phlegm can be used to promote the discharge of secretion, such as OLONGMA oral drops. Allergy to this product is prohibited. The child has phlegm is only a symptom, should be clear in time its specific causes, for the cause of the treatment is the fundamental treatment, the specific treatment need to follow the doctor’s instructions. All of the above medications should be used under the guidance of a doctor, avoid self-medication.