Can I make tea with Ophiopogon japonicus (McDoor) during a cold?

Whether or not Liriope root (Ophiopogon japonicus) can be used to make tea during a cold should be determined based on the specific type of cold. If it is a wind-heat type cold, moderate use of Liriope root may generally be acceptable. However, if it is a wind-cold type cold, its use is not recommended, and taking medication under the guidance of a physician is advised. Detailed explanation is as follows:

Liriope root is slightly cold in nature and has the function of clearing heat and promoting body-fluid production. Wind-heat cold is caused by external contraction of wind-heat pathogens, and common symptoms include fever, dry throat and mouth, sore throat, and swelling. The heat-clearing effect of Liriope root may help alleviate fever symptoms, but its consumption should be controlled to avoid excessive intake that could cause bodily discomfort.

However, if the cold is caused by wind-cold, which is characterized by symptoms such as chills, cold intolerance, nasal congestion, and clear runny nose, Liriope root, being relatively cool in nature, might exacerbate internal cold-dampness and hinder recovery from the cold. Before consuming Liriope root tea, it is recommended to consult a qualified physician to ensure safe and effective medication use.

In daily life, it is recommended to maintain a balanced diet and ensure adequate rest, which can help enhance immune function and promote recovery from colds.