Hi, I am so sory your daughter is having to deal with this.. and at such a young age too, and I realy feel for you as a mother too..

First I would start her on Vitamin C 500mg daily (ask pharmacist about dosage per weight) as soon as possible, studies have shown that Vitamin C (500mg - 1500mg) when given after a break and after surgery can stop up to 2/3 rds of CRPS from happening in injured people, she is at such an early stage too.. please see the link below about it:

Vitamin C hope for people suffering from extreme pain syndrome
http://www.arc.org.uk/news/pressreleases/13611.asp

Also when it comes to physiotherapy from every thing I have read and alot of the kids I have talked to.. it can realy turn CRPS around and put it into remission..
Children take to physiotherapy far better than adults with CRPS do aparently, and as long as you check out the facility thouroughly.. make sure they know CRPS and have delt with children succesfully, it may seem harsh but look at what progress your daughter made in that very short time.. and how quickly it took to fall back.. I think she would be a good candidate for this kind of multi therapy.

Physical Therapy
http://www.nationalpainfoundation.or...ysical-therapy

Pediatric complex regional pain syndrome
http://www.ncbi.nlm.nih.gov/pubmed/1...&ordinalpos=15

Complex regional pain syndrome (CRPS) in children
http://www.uptodate.com/patients/con...wsrg&refNum=40

Baths.. Put epsome salts in her bath water the magnesium in the salts helps sooth the pain and reduces swelling.. elevate after the soaking.

Best wishes and hugs,
Sandra