I would first try just shaking baking soda on it, one side at a time, and letting it sit for a few days. I recently had two things spill in my car that left stains and smell: wine and spaghetti. I used a stain remover that came with one of our old cars. The wine stank, the cleaner stank. I thought I was doomed. The stains came out, but the best thing is: I put a small cup of baking soda in the car over night! Sweet as fresh air! I use baking soda a lot as I am alergic to most perfumes, and so-called scents. It neutralizes!