There are physical therapists that do manual therapy (massage) to drain and reroute the lymph fluid. There also is compression therapy using bandages as well as a pump to drain and stop the buildup of fluid. You can look up Beyond Basics Physical Therapy in NYC directed by Amy Stein. Roseanne Cruz specializes in lymphedema treatment. They do have other international patients so you shoulk be able to work something out with them.
Hatzlacha Rabbah,
Refuah Sheleimah!