I have tried the very effective but very toxic solutions to getting rid of mold in my shower, and it made my lungs hurt, even when I did everything to protect myself. I took this as not a good sign! So are there natural, non-toxic solutions to this problem?

Debra Lynn Dadd "Queen of Green"
EXPERT ANSWER: I’m going to give a number of the best solutions.
Borax and water. Spray it on and the mold wipes right off.
Hydrogen peroxide. A 6% concentration of hydrogen peroxide in water has been recommended. Let it sit a few moments, and sprinkle baking soda. Then scrub with a paper towel that is wet with the 6% concentration of HP. If you are dealing with a really bad situation, you can use the straight 35% hydrogen peroxide. IMPORTANT CAUTION: 35% hydrogen peroxide is extremely caustic (can eat through skin) and should be handled with goggles and protective gloves.
Water and tea-tree oil. A tea tree shower spray is available at the larger health food stores, and it is called Shower Kleener.
Steam cleaners–which clean, sanitize, and deodorize using only hot water–also work great on mold. Shark Steam In A Bottle sells for about $50.
Towel-dry walls and floors. Once you have removed the existing mold, dry the walls and floor of the shower after each shower. After you dry your body, you can just use the same towel to dry the shower.
Bathroom fan. Also, using a fan or increasing light will help keep the bathroom dry and mold-free. You might also try using a shower squeegee to wipe down the water after your shower.
Lotus Sanitizing System. This was recommended to me, and is at The Sharper Image stores. It is an appliance that oxygenates water temporarily (15 minutes). During that window of time ozone is infused in the water. This super oxygenated water can be used anywhere you need to kill bacteria, mold or mildew. It has been said to be stronger by 50% than any chemical, and work 3000 times faster.
Oxo-Brite by Earth Friendly Products. Make a paste, and cover the area with the paste. Let it sit for a half hour or longer, then rinse. It has been recommended as an excellent mold fighter and grout whitener.