osteoarthritis
"I used the patch and because I thought it was helping reduce the pain of my tendonitis of my wrists, I continued using it. The pain  of neither wrist got worse and my palm hurt and also the fingers.  A week ago after using Salonpas pain patch for over three months, my wrists have swollen and the pain is excruciating.  I went back too my doctor but because he was not aware that I had used the patch for a long time, he thought the swelling of the wrists were due to rheumatoid arthritis.  The swelling is going down  gradually. I would like to add here that I am allergic to aspirin and ibuprofen.  I read the label only yesterday!"