What is one of the best creams you can rub on your knees for arthritis. i have tried 1% and 3% voltaren. they're okay but i can't say they're the best. any suggestions?

Nothing rubbed on the outside of a sore joint is highly effective. Diclofenac (Voltaren and generics) providse modest help for some patients, but most are like you, i.e. it doesn't make much difference. Other nonsteroidal anti-inflammatory drugs (NSAIDs) by mouth, like naproxen, ibuprofen and many more usually are more effective. Keep working with your doctor. Good luck.