Hi there,
Have any of you tried Grape seed extract? it is used to help swelling and I have heard that it could work for RSD swelling, but it does not reduce pain
Here is a list of what it is used for.

Cardioprotection (reduces risk of athersclerosis)
Reduces cancer risk
Improves vascular strength (stronger blood vessels)
Reduces edema (inflammation/swelling)
Promotes eye health (reduces risk of macular degeneration and cataracts)

Please let me know if you have tried it and did it work for you
Thanks
Alison