False. “40 seconds to clear phlegm the fastest way” this statement lacks scientific basis, phlegm crowd can be general treatment, drug treatment and invasive treatment. 1. General treatment: coughing phlegm phlegm crowd in daily life need to keep as much as possible in a sitting position, breathing rate to slow and deep appropriate; if the patient is bedridden, the accompanying staff can also be regularly on the patient chest percussion as a way to discharge phlegm. 2. Drug treatment: cough phlegm phlegm crowd can also choose expectorant treatment, commonly used expectorant bromhexine and acetylcysteine and other drugs; if the phlegm is caused by infection, you can also choose to take antibiotics, such as ceftazidime, penicillin and so on. If the phlegm is caused by infection, antibiotics such as ceftazidime and penicillin can also be taken. 3. Invasive treatment: If conservative treatment is ineffective, patients can also choose suction tube suction, tracheoscopic suction and other methods. People with a lot of phlegm need to go to the hospital for professional and standardized treatment, and should not blindly believe in the so-called “40 seconds to clear phlegm” and other claims.