Megan,
So very sorry for your diagnosis and your need to be on here.
A big WELCOME however.
Yes, read every thing you can ! My physical therapist told me early on that
"you have to be your own best advocate with this".
We discuss fairly often how under educated the medical community is
regarding RSD/CRPS.
If you haven't found it already there's a good website RSDhope.org. They have lots of articles and information.
You need a GOOD pain management Dr. &/or neurologist who has experience
with this. They can advise some treatment options.
Always do your homework on anything invasive.
The only thing I can advise in the short term (I'm no medical professional) is
take at least 500 mg. Vit. C daily. It helps prevent spread and does no harm.
Insulate your foot from the cold best you can. Keep it moving all you can but
not to the point of extreme pain.