for motorhome refrig and ice chests, we use newspaper wadded up or dry coffee grounds.....
u might try wadding newspaper up into the drawers for a week or so... if u could get a big tarp or some sort of platic bag and tightly enclose it with some newspaper ( paper absorbs the odors) or the coffee grounds ( they also absorb the odors... but leave a coffee smell) that would be best
Works like a charm on ice chest and RV refrig!!!
I've also used this method on old dresser drawers that had a musty/ foul odor