I did some creative searching online and discovered a forum with the answer to my problem.
The suggestion? The magical, golden solution?
Liquid enzyme and bio-culture (friendly bacteria) stain and odor remover.
This is why and how it works:
The product contains special bacteria that attacks odor causing organic material. (i.e. feces, urine, vomit, etc.) You let the liquid dry overnight and it consumes the organic odors. It is perfectly safe for humans and domestic animals.
I looked in the pet section at a local store and found this to my liking--
From the Out! Interntional website:
NATURAL STAIN AND ODOR REMOVER
- Eco-sensitive alternative to harsh chemicals found in traditional household cleaners
- Made with renewable corn-based ethanol and plant-based mild cleansers in addition to beneficial bio-cultures and enzymes
- Freshened with a Herbaceous Lemon Grass Essence
- All natural fragrance works with the cleaning agents to advance pet odor removal at the source.
It says on the bottle that it also works for other hard to remove organic stains like red wine, grass, and even baby formula.
Look for it in these stores.