Anja, I have had wonderful results with lymph circulation and swelling, from using a vibration training machine. A lot of physiotherapy practices have them now, as well as many fitness centres. It might be something to look into.
I have one at home, and 10 minutes a day is all I need, I have had no swelling since using it, (I had a lot of swelling in my knee and ankle due to a knee injury), and my circulation is tip top now.