Identify a point used for pain in the finger joints along with HE-9.

The point used for pain in the finger joints along with HE-9 is LI-1. This point, located at the radial side of the index finger, is part of the Large Intestine meridian, which has channels that connect to various areas of the body, including the hands and fingers. LI-1 is particularly useful for treating issues related to the fingers, including pain, as it helps in clearing heat and resolving conditions of stagnation or blockage in the meridians.

When used alongside HE-9, which is located at the corner of the nail on the little finger and is associated with the Heart meridian, this combination can effectively address pain and discomfort in the finger joints. The synergy of these two points can be particularly helpful for improving circulation and alleviating pain in the small joints often found in hands and fingers.

In contrast, the other options, such as P-9 and LU-11, may not specifically target the issue of finger joint pain, as they are located on different meridians with broader effects rather than localized benefit. Similarly, SI-1, while also on a hand meridian, is less closely associated with finger joint issues than LI-1 in the context of acupuncture treatment for pain.