So I dye my hair blue a lot and it's stained the bottom of my bath tub. The other bath tub I use to wash my dogs in. It's also stained with this weird gummy residue halfway up the tub. It's impossible to scrub off. Being 5 1/2 months pregnant I can't handle the smell of bleach at all. Would anyone know what I can use? I want my house to be perfect before baby comes!