However, given the composition of some modern fabrics (polyesters, for example), check with your local dry cleaner BEFORE attempting to use lye in a washer. Might want to check with the washer manufacturer, too, to learn the correct amount to use per load.
Customers better smile for the camera when they pick up lye at the big chains. Since all transactions at the cash registers are filmed, all Big Bro has to do is ask the stores for the copies. Lye is an ingredient used in making meth. God forbid you have allergies and need a decongestant. :)
Sodium Hydroxide is what is in Drano - definitely dangerous.