I've had arthritis since I was 27 and am now 63. I have allergies to a lot of painkillers so many years ago I learned biofeedback to control the pain. I also discovered that some foods make it worse. (For me it is MSG, black pepper and alcoholic beverages.) Consider keeping a food diary for a while. Cold humidity also makes it worse. Also just keep moving. I know it hurts but not moving in the long run is worse. Do things to keep your hands warm. Know your limits.
I do FMQ and some days are better than others.