The outer side of the little finger is connected to the Hand Sun Small Intestine Meridian, which is in phase with the Hand Shao Yin Heart Meridian, and has the effect of soothing the tendons and activating the muscles, tranquilizing the heart and calming the mind.
On the ulnar side of the last joint of the little finger is the Shao Ze point, which is the well point of the hand sun small intestine meridian and also the starting point of the meridian. The Small Intestine Meridian runs along the lateral side of the little finger, up the posterior edge of the upper limb to the shoulder joint, over the scapula to the shoulder, and then upward to the lateral canthus of the eye, over the front of the ear and into the middle of the ear.
This meridian is mainly used for treating diseases of the head and face such as headache, cataract of the eyes, sore throat, etc., fevers, mental illnesses such as coma, fever, malaria, etc., as well as other diseases of the meridian circulation such as strong pain in the neck and back, lumbar and back pain, contracture of the fingers and elbows, etc. If this meridian point is needed, it will be used to treat the pain in the back of the neck and back.
If you need to use these meridian points for treatment of related diseases, you should be operated by a professional.