I found something that helps my arthritic thumb

There are 2 basic types of arthritis:

Osteoarthritis (OA), also called degenerative arthritis, is the most common type of arthritis. It affects over 32 million people in the United States, according to the Centers for Disease Control and Prevention (CDC)
With OA, cartilage in your joints breaks down, eventually causing your bones to rub together and your joints to be inflamed, which leads to pain, bone injury, and even bone spur formation.

Rheumatoid arthritis (RA) is a type of autoimmune disease in which your body attacks healthy joint tissue.
Common symptoms of RA include morning stiffness and joint pain, typically in the same joint on both sides of your body. Joint deformities can eventually develop.

I have the first one.

Terry