Which point is utilized for alleviating shoulder pain and benefits the arm?

The correct answer is LI-15 (jianyu). This point is specifically located on the shoulder and is known for its effectiveness in alleviating shoulder pain and improving mobility in the arm. LI-15 is often chosen in acupuncture treatments for conditions related to the shoulder and upper limb due to its anatomical position, as it is situated near the deltoid muscle and the shoulder joint itself, making it particularly beneficial for issues affecting that area.

In terms of its physiological action, LI-15 helps to invigorate the flow of Qi and blood, reducing pain and stiffness in the shoulder and enhancing the function of the arm. It can address conditions such as frozen shoulder or other types of shoulder discomfort.

The other points listed may have different primary indications and do not directly target shoulder pain or the arm as effectively. For example, SJ-14 is also located in the shoulder area but is less frequently used specifically for these types of complaints. SI-6 and LI-14 do not primarily focus on shoulder pain, with SI-6 primarily being used for benefits related to the eyes and LI-14 being used more for elbow and arm conditions rather than shoulder-specific issues.