I agree with what everyone else has said. General movement is very important. It's also important to avoid forcefull movements that cause sharp pain (not your usual everyday ache), like opening a stiff lid on a jar, can openers...

Heat is also a good treatment. We use paraffin wax baths a lot and they can be purchased for home use:

http://www.easierliving.com/ProductD...FQSOggodPF7CVw

You dip your hand in the warm wax a few times, wrap it up, let the heat soak in. Then take the was off and use the warm wax for gentle gripping exercises.

This is a mainstay of treatment for most people with hand arthritis.

Hope that helps.