How long does it take for interstitial cystitis inflammation of the bladder to go away?

Varies. Some patients have symptoms for tears while others seem to have periodic episodes of symptoms.
IC comes and goes. Ic is not well understood, but it is felt to be a chronic, non-infectious, inflammation of the bladder and/or urethra. It is much more common in women than men. There is no one treatment that is effective for everyone, but there are effective treatments. Please see this blog post for more details: http://healthhub.Brighamandwomens.Org/tag/urogynecology.