Mine too. I've been adding AQ salt and doing 50% water changes daily. I figure if he was stressed enough to turn white, I should be proactive in preventing any further infections.
I FREAKED when I first saw him. I'd been on vacation and the person I left in charge of him didn't see fit to change his water after his plant had rotted in his bowl! I think my freak-out stressed him more than the water conditions.
Asides from some fin damage (his anal fin is curled now) he seems fine now, except that he hides from me everytime I come in the room now.