Yes and no.

[ He shifts his grip to extend Childe's arm out fully so he can start working up to the elbow and shoulder. ]

This became a very popular method of--- well, I dare not say healing but how to say the soothing of injuries a few centuries back. I took a mortal guise to observe a master of the craft on more than one occasion during that time.

You'll still find aspects of it interwoven into the modern medicines of Liyue.