Leave it attached to the rest of the deer and don't shoot it
Cut it's nose off. *ba dum chh* Thank you, thank you.
An ozone air cleaner or an ionic air purifier are great devices to clean the air and keep a house fresh without resorting to smelly, headache inducing air fresheners. They can also rid your home of...
it is impossible
You should wash it, and stop it from rolling around in/ and / or eating its own feces.