I am schedule to get cortisone injections in my knees this week due to my arthritis. Does anyone here have any experiences with this? I have read on the internet that the shots can do wonders for stopping the inflamation and other times it does nothing at all. I am planning on going on a big salsa crusie at the end of Nov and I would really like to dance with worrying about another flare (which happens 80% of time after dancing). Thanks!