WE HAD A BAG OF FISH THAT LEAKED IN THE FRIDGE. I WASHED THE ENTIRE FRIDGE,TOOK EVERYTHING OUT AND SCRUBBED EVERYTHING,EVEN REBAGGED EVERYTHING. I THEN PLACED BOXES OF BAKING SODA ON TWO SHELVES AND HAVE CHANGED THEM SINCE.THE SMELL HAS DISSAPATED BUT IS STILL THERE.WHAT ELSE CAN I DO?