D.O.
I have 2 indoor dogs and this is a problem we've had to deal with more than once! :( If it is a light stain, I will spray it with diluted Solumel and then press on the stain with a paper towel. It may take a few tries but this almost always gets rid of the stain without any other treatment. Solumel is a great product because it is a deodorizer as well as a stain remover! If the stain is a little more deep, I will spray it with full-strength Solumel and then press with a paper towel. A few times, when a stain has set in, I have sprayed it with PreSpot before steam cleaning the spot with a Tough & Tender/Solumel solution. I've never had any of these products fail me!