There is no best and fastest way to expectorate, patients can follow the doctor’s instructions to expectorate through physical expectoration, humidification therapy, medication and other methods of expectoration. 1. Physical expectoration: Elderly patients can use physical expectoration methods, commonly used ways to pat the back to promote the discharge of sputum, or use a suction device to suction out the phlegm. 2. Humidification therapy: High-flow respiratory humidifier can be used for expectoration therapy. By providing high-flow, heated and humidified respiratory gas to humidify the airway and dilute the phlegm, it promotes the expulsion of phlegm. 3. Medication: For people with viscous phlegm and poor physical expectoration effect, expectorant medications such as aminobromine hydrochloride delayed-release capsules and acetylcysteine capsules can be combined to promote expectoration by diluting phlegm and decreasing phlegm viscosity. Specific treatment methods and medication should be carried out under the guidance of a doctor, and it is recommended that patients consult a doctor in a timely manner for the correct treatment, to avoid the adverse effects of private operation on the body.