Sputum can be spit out after drinking Sanzi Yangqin decoction, which may be a manifestation of the body's natural detoxification. Sanziyangqin decoction is a traditional Chinese medicine prescription, which contains a variety of herbal ingredients and has the effects of clearing away heat and toxic materials, moistening throat and relieving sore throat. It is often used to treat cold, sore throat and other symptoms.

When the body is infected with virus or bacteria, the immune system will produce an inflammatory reaction, which will lead to congestion and swelling of the mucous membrane in the throat, an increase in sputum and a blocked throat. After drinking Sanziyangqin decoction, some of its components have expectorant effect, which can help dilute sputum and promote expectoration. Therefore, if you can cough up phlegm after drinking Sanziyangqin decoction, it shows that the medicine has played a role in dredging the airway, helping to excrete viruses, bacteria and other harmful substances, thus promoting rehabilitation.

However, it should be noted that expectoration after drinking Sanziyangqin decoction is only one of the manifestations, and it cannot be used as the only indicator to judge the improvement of the condition. If the color of sputum is abnormal, the odor is heavy, accompanied by symptoms such as dyspnea and fever, it is recommended to seek medical advice in time in order to get more accurate diagnosis and treatment. At the same time, before using any medicine, it is best to consult a doctor or a Chinese medicine practitioner to ensure safe and effective use.