Please look on the web site and rwead about the sitz bath, it is simply cold water after you have been sweating and will draw the fluids down and out.
ALL drugs to reduce the swelling do damage to the liver and rarely ever do reduce the swelling, what you choose to do may or may not end your running career. Operations will end it in my opinion based on the guys at work who have been scoped and then every day for the rest of their lives it hurts.