Many studies have been done showing the relief of shoulder pain in periarthritis patients. Great success has been noted in many case studies around the globe. Different points and needling techniques have proven to be successful in remedy of shoulder pain. Here are a few of the research article links we noted:
https://link.springer.com/article/10.1007/BF02874850
Periarthitis Shoulder pain acupuncture
Acupuncture Relieves Shoulder Pain, Ups Range of Motion