Folks in the comments seem to be making pretty broad statements about what is good or bad, and I just want to let readers know to take everything with a huge grain of salt.
In my case, fear of making things worse was the biggest obstacle — pushing myself to trust that typing isn’t dangerous, even though it hurt, was critical in my recovery. This is awful advice for many people with RSI, though.
My advice: see a physical therapist first. They can often help, or point you in the right direction. If months pass and nothing seems to help, seek out alternative explanations and keep an open mind. Check out The Mindbody Prescription” by Dr Sarno. It was the missing puzzle piece for me.