Hi David,
I am in the US. Some time ago, I had some lymphatic massage done by an LMT (licensed massage technician). It is very gentle as the lymphatic system is just below the skin. The LMT said that my lymphatic system was sluggish and I got a feeling that that was where some of the Gleevec edema was. I was on Gleevec and doing a vaccine trial at the time....and I wanted to move 'stuff' through the lymphatic system. I did feel different, maybe 'lighter' after these Rxs.
There is also another way to influence the lymphatic system....it is a technique called 'dry brushing'....you can probably google that. There is a special brush made for this and you brush the skin lightly in a certain pattern (from the extremities back toward the trunk) and they suggest that you do this before taking a bath, to stimulate the lymphatics. I think this technique might be from Japan??
This type of stuff is often done post mastectomy when the lymph nodes are removed and there is a lot of swelling in the arm....so it is really not so far out.
I am a retired physical therapist.
Nancy C.