It's hard to tell because the picture is so small, but it looks exactly like what my vet referred to as pustules. Lola's had them a few times to date. Are there any bumps on Truman's back? usually we'd feel scab-like bumps on Lola's back, and when those scabs fell off they'd take patches of hair with them. If it's the same thing, an antibiotic should clear it up.