Bayberry flowers are effective in relieving cough and phlegm, and are often used to treat cough, sore throat or phlegm due to rhinitis, colds, pneumonia, bronchitis, and other symptoms. In addition, mother-of-pearl is divided into Sichuan mother-of-pearl and Zhejiang mother-of-pearl, which have slightly different effects. Chuan Bai Mu has the effect of clearing the lung and relieving cough, clearing heat and resolving phlegm, and is often used to treat lung-heat and dry cough, deficiency cough, etc. It is especially suitable for dry cough and internal injuries with prolonged cough. It is often used to treat dry heat, wind-heat, cough and pulmonary carbuncle. Comparatively speaking, Zhe Bei Mu has a stronger effect of clearing heat, but does not have the effect of moistening the lung. Bayberry flowers can be brewed directly as tea or taken after drying, both of which can be very effective. Bayberry flowers are cold in nature and should not be used in excess. If you are taking other medications at the same time to avoid interactions, you should consult your physician in detail.