Most often a saucer filled with Ammonia will absorb these types of odors. Or actually the Amonia will absorb the odor and the saucer is to hold the Ammonia. Anyway put a saucer near that area and fill it with Ammonia and leave it for a time.

I tried that. It changed the odor but didn't get rid of it. It was sort of like putting lipstick on a pig...it still smells awful under the amonia smell. Any other suggestions?

Never had a problem like that, and we have even used straight ammonia to eliminate skunk odor. You may need to repeat placing saucers of ammonia several times if that odor has been absorbed by the wood,

We gave up trying to get the odor out so we sealed it in. 2 coats of Thompsons Water seal seems to have done the trick. We will leave it open for a while to make sure it is completely dry and that the odor does not come back but this is the best it has been in many many days.

Sounds like you may have already solved the problem, but I had an idea -- you could try activated charcoal -- available at pet supply stores, esp. those that sell fish and aquarium supplies. There are also little fans available that have activated charcoal filters integrated into their design, and the fans plug directly into a wall outlet. Than again, the charcoal might need to be replaced later, and the problem not totally resolved. Another paint/sealant idea one could try might be the primer that covers stains and everything and seals them and might be less expensive than the Water Sealers -- is a product called KILZ.