I have never heard of Interstitial Cystitis, but My guess is it will work. Hulda Clark says that any posative offset friquency between 5 and 100,000 Hz will kill all parasites, so it really doesn't matter what frequency it's set at as long as it's between that amount. Your zapper is probably set at the right frequency. You should do at least one zapping session (7 minutes on 20 minutes off until you've zapped three times) at least once a day, more if you want. Get well soon, okey!
God bless,

getwisdom