What is LI-4 known for in acupuncture?

LI-4, also known as Hegu, is recognized as the command point for the face and head in acupuncture. This designation refers to its strong ability to influence conditions related to the head, such as headaches, facial pain, and issues pertaining to the sinuses and eyes. The command points are specific acupuncture points that, when needled, can address disturbances in corresponding regions, making LI-4 particularly useful for facial and head-related issues.

In clinical practice, LI-4 is often employed for its analgesic effects and is a key point for promoting overall Qi circulation in the body. This characteristic aligns with its traditional use in acupuncture as a primary point for alleviating tension and pain in the upper body, thus reinforcing its role as the command point for the face and head.

Other designations, such as Xi Cleft, Window of the Sky, and Ying Spring, refer to different categories of acupuncture points, each with unique therapeutic functions, but they do not apply to LI-4. Therefore, LI-4's classification as the command point for the face and head is what makes it the correct answer in this context.