Black And Red Furniature - What Color To Paint The Walls What Would Cause My Dog To Have A Black /red Rash And Smell Very Bad?

What would cause my dog to have a black /red rash and smell very bad? - black and red furniature - what color to paint the walls

He is still licking ass and everything was red / black and has a very bad ordor. He began his path to the sides. Never use in the home and is now going into the ground at night when sleeping or barking every night into the night, which is something unprecedented. We are always sure to leave him every night before going to bed and always has worked for 11 years, but we had to stop working.