Im just going to throw something stupid out there, but when Laci used to use pads , one time I bought these pads that had some sort of an attractant in it, they smelled soooooooo foul after she peed on them and they were wet it was almost gagging.. It smelled like a old dirty diaper. Im just wondering if by chance you got a different kind of pee pad, if so read it and see if that is the case.. I ended up throwing them away because they had that same oniony type smell!! Just a simple thought