You can paint paneling if it is sanded lightly and evenly with a fine grit sandpaper then cleaned and dried. We too have old paneling in our home ... View related article.
I have always had great results using dishwasher detergent and a little water in the pan, bring it to a boil and then let it sit for a few hours ... View related article.
If the cloth has not already been washed and dried you can pour peroxide onto the blood, when it stops foaming add more peroxide, continue to do this untill the blood is gone........this works GREAT! ... View related article.
I also have a boxer with allergies and it can be HORRIBLE! My advice is to have your vet allergy test him then you know exactly what the problem is and can eliminate it and the scratching will stop. My boxer was so uncomfortable when her allergies where out of control. ... View related article.