Hello everyone, I'm from the UK

My sister has had CRPS for a year now from banging her foot against something hard by accident. I don't know the specifics of her CRPS and I don't know if it's spread either, she's been keeping quietly to herself about the condition and only recently I've learned how horrific this condition actually is. I don't know if it's spread anywhere recently (she seems to be in ache/pain moreso lately)

I want to help her get better so I suggested to her she ask her doctor about tDCS and TENS machines (and perhaps low dose ketamine infusions athough I don't know specifics about these and I'm not sure she can actually afford all of that). Maybe just tDCS and TENS will be good enough... I hope :/ Maybe even mirror therapy? I've read that it has caused spreads and such so I'm not sure if I want her to risk it. Now knowing that spreads are a fresh case, I'd prefer if she got her tDCS and TENS first I suppose

One thing I'm definitely curious about is if TENS units (sorry, slightly off topic) have ever caused spreads or whatnot although generally they seem like they're safe?

Are there good online stores that you guys who have had success used that ship tDCS and TENS units internationally (to UK ;p)? I would love to know, I just want to help her and get her life and happiness back