[MEDIK418]

THere's a product called XO that will take the smell out of a skunk. I was introduced to it after our house burned down and needed to de-smokify some of the remnants. Since then, I've used it on a number of smells and it's worked on all of it. There's another product called Noseguard that we use to control mercaptain releases and it does a good job. If it'll kill mercaptain, it'll kill dead animal smell.
Mercaptain is the odorant that is injected into LPG's and natural gas to give it a detectable odor. It is based on the same thoery as rotting carcasses, I.E, you can never get used to the smell of a deads animal like you can any other odor. With most smells you get used to it in about 15-20 minutes of exposure. Dead, rotting carcasses and mercaptains will irritate you no matter how long you are exposed to them. Like I said, Noseguard works on the nasitest concentrations of mercaptains so it should work on your problems.