treatment in most cases is with nsaids and possibly colchicine. steroids may be used if those are not appropriate. typically symptoms improve in a few days to weeks but can occasionally last months. complications can include cardiac tamponade, myocarditis, and constrictive pericarditis. it is a less common cause of chest pain. about 3 per 10,000 people are affected per year. those most commonly affected are males between the ages of 20 and 50. up to 30% of those affected have more than one episode.