My wife had this in her thumb. The doc tried anti-inflamatories, to no avail. He recommended surgery. Before doing so, a friend asked her to try omega-3 fish oil capsules. She took a lot on the first day, maybe eight capsules. On the very next day there was improvement. She continued taking a lot for a few weeks and then slowly tapered it off. Over a period of months, she fully recovered. She is now on a maintenance dose of two a day. This is definitely worth a try prior to surgery. Nothing fishy about this kind of result.

Al