Here in the Uk our hospices run lymphoedema clinics .They take place every day and there are also outreach clinics in villages further away.The clinics are run by lymphoedema specialist nurses,and they treat legs,arms ,heads,in fact any part of the anatomy affected by lymphoedema caused by any number of diseases including cancer.
It is a specialist area and i am sure you must have lymphoedema specialists in the USA so it might be worth an internet search or an enquiry at a hospice.