I wear tzitzit and always treat them with the proper care and repsect. But I recently became sick and when I suddenly lost control of myself, my tzitzit became soiled.

I tried to wash them in water and the tzitzit are not visibly stained. Should I wash them further in belach with my white laundry or have them dry cleaned?

Can I still say a beracha over them?

I INQUIRED TO AN EXPERT ON TZITZIS CLEANING FOR A LARGE GROUP OF MALES BETWEEN 3 AND 40 YEARS OF AGE (MY WIFE).
FIRST QUESTION; WOOL OR COTTON?

It shouldn't be any problem at all. Even stained wouldn't be a problem, since it lost it's property of being waste after it's completely dried up. Furtheremore, though of course the Tzitzes needs to be treated with respect, if by accident this happens, it doesn't make the Tzitzis unfit. Of course, you can't make a Bracha on it if it's really soiled at the moment like you can't say any Bracha in front of waste. But at this point where it's clean, there is no problem.