I'm interested in knowing if anyone has an idea why paracarditis would return after ten years with no symptoms/flare ups. I had my first bout at 23 (I'm now a 41 YO female). At 23 I had a paracardial window. For the first five or so years, I'd have flare-ups every year and I'd have to take Naprosyn and/or steroids to clear it up. I was just wondering if anyone else has ever had it to return after so long.