Baihe Ermu Decoction is a traditional Chinese medicine decoction, which is mainly composed of Lily, Radix Rehmanniae, Radix Adenophorae and Fritillaria thunbergii. Its functions and functions include clearing away heat and moistening dryness, nourishing yin and nourishing lung, resolving phlegm and relieving cough, and clearing away lung heat. It is often used to treat cough and expectoration caused by lung heat. The side effects of Baihe Ermu decoction are generally small, but the following points still need attention: 1. Use with caution for pregnant women, lactating women, children, the elderly and the infirm; 2. People with allergic constitution should avoid using it, and stop using it immediately if allergic reaction occurs; 3. In the process of applying traditional Chinese medicine, if you feel unwell or the symptoms get worse, you should seek medical advice in time and stop taking the medicine; 4. This product should be used according to the dosage prescribed by the doctor, and it should not be used in excess. Therefore, before using Lily Ermu Decoction, it is recommended to consult a professional doctor or Chinese medicine to avoid health damage caused by improper use.