How do I get the sour milk smell out of something?

Hi Sunni,
If the milk was spilled on something, I would probably try using an enzymatic cleaning solution. If the smell is in your refrigerator, try placing an open box of baking soda in there. Baking soda carpet refreshener may work for carpeting or furniture as well.

How do I get the sour milk smell out of something??

If it's on matresses or rugs, use 20 mule team borax, sprinkle are with borax rub the borax into area and let dry, brush or vacum to remove, really need to know what the milk has soured on?? :o

Try placing vinegar in a small bowl any where, it eliminate odors.