Interstitial Cystitis (IC) is a very severe bladder infection with very painful symptoms and no known cure. It has proven extremely difficult even to treat. One of the only effective means of treatment is DMSO.
For this reason, the Interstitial Cystitis Association reports that, in 1978, the FDA approved the use of DMSO in its liquid form, Rimso-50, for use in treating interstitial cystitis (IC). It is to be noted that topical and oral forms of DMSO have not been formally studied in the treatment of IC and, thus, caution should be taken when using in these forms.
DMSO has been found to possess both anti-inflammatory and analgesic properties. The body's production of free-radicals result in pain and inflammation at injured sites and it is believed DMSO inhibits production of these free-radicals. DMSO also aids in the absorption of other bladder-instilled medication.