When I go to check out new scents of perfume at the mall, they generally give me a small vial of coffee beans to clean my scent glands between sniffings. You might try that. Apparently coffee has a nose neutralizer capacity.
Slightly off topic: Do you realize why we react so emotionally to certain smells (usually the good ones)? Because the smell receptors in the upper part of your nose are very close in proximity to the memory parts of your brain. So the smell of baked apple pie triggers wonderful memories of holidays with the family.
But the smell of dead meeces - well, that's another memory in the making.