How Do You Get Preparation H Stains Out Of Cloth?

Do not use bleach on these stains they will react with the
proteins and set the stain.  There is
finally a stain remover that takes out underarm perspiration stains.  It's called PitStop and it removes with ease
the ugly stains that all detergents and stain removers claim to do but can't.
You can buy it online at www.armpitstainremover.com