I can still feel the bleach burning the white out of my eyes. I am a wimp. I didn't know that I was concerning cleaning chemicals, but seriously, I definitely am a big time wimp. I had to walk in and out of the bathroom at least a dozen times or so just to keep from passing out. Every single time I scrubbed 3 square inches of the shower my eyes would water and burn and I would absolutely have to leave the room for some fresh air! It became pathetic. It took me about 45 minutes to clean just the tub. Ugh ugh ugh. And people wonder why I hate cleaning? Nonetheless, the bathroom now sparkles and there is no trace of soap scum in the shower! Hip, hip, hooray!