hot water and lots of soap.. fill it with hot water, dump about a teaspoon of soap in it scrub it really good, then put the lid on and let it sit for a good 12-24 hours.. after that much time, take the lid off, dump that water out and use hot water (the hotter the better, get it as hot as you can possibly stand) and some more soap, scrub really good, rinse it with as hot as your water gets (since you won't have your hand in it you can use hot ass water) rinse it out til all the soap residue is gone, then set it in your room opened, and let it air out for liek another 24 hours....

smell should be gone.