My Dog Has Red, Scaly, Bloody Patches On His Stomach And Legs. They Don't Seem To Be Bothering Him But They Are Spreading. What Could It Be?

My dog was suffering from red, scaly, bloody patches on her body.  She is a Sharpei.  She had mange a couple of years ago.  $1000 later she was cured.  Now I had no money and decided to bathe her with my Nioxin shampoo.  3 days later I noticed hair had begun to grow back!  This has worked like a miracle but I don't understand why.  I just know that it works.

It is a question for a vet.  If the patches are bloody, you may be mistaken about them bothering him.  He is likely scratching whether you see it or not.  In any case it is a condition that needs professional treatment.  Don't delay.

Sounds Like Mange, But It could be allergies.  You really need to take the dog to the Vet