According to something I read the other day don't take Ibuprofen regularly as it can have directly the opposite effect to the one you wish for!
I have quite severe osteoarthritis and mild rheumatoid arthritis in numerous places throughout my body resulting so far in both hips, one shoulder and a sodding great cage in my neck and my hands aren't up to much either with fingers that don't want to bend.
Although I do take Ibuprofen very occasionally when the back is giving me gripe, I try to totally ignore the other aches and pains as much as I can. For me at least I find that 2 x 1000mg high strength concentrated cod liver oil tablets a day (at 12 hour intervals) works well, but mind you it takes some months before it starts to help, so don't expect immediate results. A good, quite frequent consumption of high fat fish such as sardines, mackarel etc.
When the finger joint pain is at serious ouch level I massage in some Spiroflor SRL Gel which I find works wonders, I get mine from a friend in Holland but this looks like somewhere you could obtain it from
http://www.dokteronline.com/en/spiroflor-vsm/
And last but not least a daily consumption of alcohol helps to numb the pain!!