It is also helpful in treating foul foot odor. A person suffering from excessive smelly feet can apply boric acid to reduce sweating that leads to bad odor from feet. Boric acid is extremely beneficial for curing skin infections, such as candidiasis (infection of yeast in the vagina), athlete’s foot, and various other fungal and yeast infections on skin. Get an odorless kitchen and bathroom by sprinkling some boric acid into the bottom of a clean and dry dustbin. Sprinkle ½ cup boric acid into the toilet bowl and swish around using a toilet brush. Leave it on for about 30 minutes or overnight and flush to get rid of bad smell and odor in the toilet. Boric acid serves as an excellent cleaner for all kinds of mold problems and insects. By making a solution from one part boric acid and ten parts sugar in lots of water, you are ready to fight with insects, like ants, cockroaches, silverfish, fleas, and others. Simply pour this solution in a spray bottle and sprinkle across your home around their hiding places.