red bumps skin puppy

Been lurking a bit and learning a great deal. First time poster. Hadn’t done enough homework and was about to put a deposit down when I decided to check things out a little bit more and came across this forum. Thank you so much for all of your shared knowledge. I will be a lot more careful...

We're headed to the vet this morning, but I wanted to see if anyone had seen this before. I'm hoping it can be easily treated... My puppy has raised red bumps on his skin. They are primarily around his collar and in his armpit. He is itching constantly. The bumps are scaly. They are about as...