Hi Anne
So sorry to hear about your daughter's accident, what a worrying time but glad to hear she is on the road to recovery.
My thoughts, and that's all they are, would be to leave out the Methotrexate for a week or so until all her symptoms have settled. It's so slow acting and remains in the system for 3 months or more so a week should make little difference to the overall long term effect. I imagine the finger pain she is feeling is more down to the accident than the RA raising its ugly head so quickly. I've been off it for 8 weeks and RA symptoms are only just starting to reappear.
The GP should be able to offer some advice, much as they might be reluctant to! Perhaps the pharmacist could advise?
Hope your daughter continues to make a good recovery,
Lyn x