[jareklupinski]

sounds like https://en.wikipedia.org/wiki/Manual_lymphatic_drainage

it feels great when you're sick, but in an ideal state, you should not need to do this as your system should be able to self-drain

[mnw21cam]

It also forms a large part of the Perrin Technique which aims to treat chronic fatigue syndrome (AKA CFS/ME).

https://me-pedia.org/wiki/The_Perrin_Technique