I assume that you're already doing the simple stuff, like icing a few times a day and elevating whenever possible. When ice doesn't work for the swelling, sometimes heat immediately followed by ice works a lot better. (Got that trick from my friend the naturopath.)
You might also benefit from an ace bandage, the wider kind, to push the swelling out.
I've had assorted knee injuries/chronic problems, and I find that topical anti-inflammatories (I use Ketoprofen 10% from a compounding pharmacy) work a lot better than anti-inflammatory pills. This isn't hocus-pocus, lab studies have found that for knees, ankles and wrists, topical NSAIDS get more medicine inside the joint than taking it by mouth. Meanwhile, almost none of it gets into the bloodstream where it can cause side effects.
In some countries there are topical NSAIDS available over the counter, in the US you need a prescription. (The pills, with a much higher risk of serious side effects, those are OTC. Totally logical, right?)
Hi janewhite, I found your remark on (KETOPROFEN)interesting. I have Arthritis in my fingers. I am unable to take Anti-Inflammatories as I have had an Ulcer.
However two yrs ago I was prescribed KETOPROFEN for Frozen Shoulder and I did find it somewhat helpful. I have not used it on my fingers yet as they are not too bad painful-wise. I have developed a number of bony lumps on my fingers and they burn and swell at times. Xray revealed Arthritis in them. If they become painful I will use the KETOPROFEN on them. I got mine on Prescription. Solofelix.