Lymphoedema can be helped in a few ways, none instant and all revert back.
I've seen great results from massage. Find a proper lymph masseur though.
Compression works. You'd need someone to put stockings on for you or a compression bandage. Can cause more problems than it helps if it starts to slip, bunch up and constrict.
Elevation of the feet above the level of the heart. Prolonged bed rest does wonders for wound healing and lower limb oedema. Unfortunately the underlying problem is often cardiac which stops lying flat being an option. catch 22.

I'd start with massage to reduce constriction and promote flow of fluid.
Good luck. Hope you improve.