swood1 Welcome to Mrs. Clean's Forum.
I can definitely help you out with this one!
Did you try products that use a mineral called Zeolite?
Zeolite is a natural mineral that adsorbs moisture, fumes, chemicals and odors. It comes from volcanic ash, and is all natural, works for years and the granules can be placed back out in the sun (for 6 hours) to be recharged!
Look for the product that comes in mesh pouches that you can slip under and in the couch; this mineral is really amazing odor remover and works very well!
Products made with Zeolite can be found in the pet section of your grocery store, pet stores and home improvement stores in the odor remover section. (you can also search the web for zeolite odor remover)
For intense treatment to remove odors using this product, place some towels sprinkled with the zeolite minerals on and under the couch, and then cover the couch with a large freshly washed cotton sheet. The odor will be gone the next day. Here are the web page links to specific products that contain Zeolite. http://www.nontoxic.com/zeoliteodor/zeo ... ntrol.html