If you have a cough with phlegm at night, try not to use cough suppressants, as they are not conducive to phlegm discharge, but will aggravate the cough with phlegm. It is recommended to use expectorant medications, which dilute phlegm and promote its discharge, instead facilitating the recovery of respiratory infections. Before going to bed, you can take oral amiloride hydrochloride or amiloride oral solution, pulmonary cough combination, and compound fresh bamboo liquid, which can dilute phlegm and promote phlegm discharge. It needs to be treated with anti-inflammatory drugs, and only after anti-inflammation will the sputum be reduced. Oral antibiotics or antiviral drugs can be taken for yellow sputum, such as cefaclor, cefadroxil or cefradine. If the sputum is white, it is often a viral infection and can be treated with oral antiviral drugs, such as Pudilan Anti-inflammatory Oral Liquid and Four Seasons Antiviral Combination.