I want to post a continue of the story - I hope it will help all women suffering from IC.
So as some of you might thought already after reading my first post - the cure was too easy to be true. Yes, symptoms of IC returned many times after that. It wasn't that bad and painful as first time - just light irritation, but it was meaning that she still wasn't cured. Many times she was free of symptoms for 1-2 weeks but then suddenly irritation was coming back. So I told my girlfriend to stop eating all acid foods (tomatoes, oranges, grapefruits). Most important - stop Vit b6 as it seems to be the most irritating thing. Stop Vit C. Stop everything what can irritate urethra and slow down healing process. And continue to take SSKI - 2 grams daily for several months. Sometimes she was almost hopeless, submitting that she got annoying lifelong disease. I say annoying because it was just slight irritation, but it was very annoying to know that anytime it can become a big pain if you do something wrong. I found a story by a woman who told that IC bacteria is very hard to kill and it requires very long time of high dose Antibiotics - 4-5 months. So I told my GF to continue taking SSKI no matter what. "We can't make it worse but we have a chance so we must use it". Now, after 4 month, I can say that we won the battle. She eats tomatoes, oranges, Vit B6, Vit C, can freeze during winter walks - no problem.
So to sum it up -
1) Eliminate acid foods, vit C, vit B6 for 5 month;
2) Take SSKI 5 grams/day during first 4 weeks;
3) Take SSKI 2 grams/day during next 4 month.