Ambroxol Hydrochloride Oral Solution is a mucolytic agent, which increases the secretion of respiratory mucosal plasma glands and decreases the secretion of mucous glands, thus reducing the viscosity of sputum. Due to the continuity of the respiratory mucosa, theoretically chronic sinusitis oral administration of this drug has the above effect, but the current instructions of this drug chronic sinusitis is not in the explicit scope of use. Ambroxol hydrochloride oral solution is suitable for acute and chronic respiratory diseases (such as acute and chronic bronchitis, bronchial asthma, bronchial dilatation, tuberculosis, etc.) caused by sputum thick, coughing sputum difficulty. Medications for chronic sinusitis include macrolide antibiotics, mucolytic pro-discharge agents, leukotriene receptor antagonists, and so on. Commonly used macrolide antibiotics such as clarithromycin; commonly used mucolytic agents such as eucalyptus-pinocampus enteric soft capsules; commonly used leukotriene receptor antagonists such as montelukast sodium. Chronic sinusitis patients with different specific conditions, the use of drugs are not the same, need to be used under the guidance of a doctor, to avoid self-medication.