Your rheumy has a very unusual view of Plaquenil.
Every website, etc. that talks about
Plaquenil is very clear that it INHIBITS DISEASE PROGRESSION of autoimmune diseases, and many,many rheumies prescribe it even when a diagnosis of Lupus, MCTD, or UCTD has not yet been made.
I have also never heard of plaquenil as a remedy for arthritic pain - but I don't follow arthritis forums, so am not up to date in that area./resources.lupus.org/entry/drug-spotlight-on-hydroxychloroquine