Which point activates the channel, alleviates pain, and benefits the shoulder and arm?

The correct answer focuses on the special properties of the point used in Traditional Chinese Medicine (TCM) that particularly benefit the shoulder and arm. SI-6 (Yanglao) is considered a key point for alleviating shoulder and arm pain, especially conditions characterized by a lack of mobility. Its location and function make it particularly valuable for issues related to the SI channel and for treating eye disorders, but its primary role in this context is its effectiveness in alleviating pain and benefiting these specific areas.

In TCM, the selection of points is very much defined by their ability to harmonize the flow of Qi and blood, addressing stagnation or blockages that can lead to discomfort in the shoulders or arms. SI-6 does this effectively, owing to its role in nourishing the tissues within the shoulder and arm regions.

The other points mentioned may have properties relevant to shoulder discomfort but may not be as broadly recognized for their direct correlation to alleviating pain and benefiting the shoulder and arm as SI-6. Therefore, this point stands out due to its specific therapeutic applications and effectiveness.