I have a swollen joint on just 1 finger (middle) on my right hand, so I don't know where or how bad your arthritis is, but mine was very painful (I type & play piano) and it was starting to look pretty crooked and noticeable.
After looking up what herbs treat arthritis, I found Joint Health by Gaia Herbs at the health food grocery store. It is a combination of devil's claw, tumeric root, boswellia, camu camu berry, ginger, etc.
This stuff works! I'm not sure how much less the swelling is (I should have taken a before & after photo) but it gradually knocks out the pain to where you don't have it any more. Some of the herbs are anti-inflammatories so that's how it works.
I'd say it took a couple of weeks to really kick in. I took 2 capsules 3 times a day, going thru 2 bottles initially, & after the 2nd bottle I felt pretty much healed pain-wise.
After the 2nd bottle (comes 60 in each jar), you can take a break if you're pain-free, but if & when it comes back, just start taking it again.
Now, my mother tried it but it didn't work for her. Then again, she's way advanced with horrible clawed hands, had it for years and is taking multiple prescription drugs (which I believe actually make arthritis worse) so it was negating any effect.
I really hope this helps you!