Glad you're taking him to the vet! I'm not sure what could be causing the spots, there are a lot of possibilities like a skin infection, allergic reaction, insect bites, etc. Hopefully the vet will be able to diagnose & prescribe something. Let us know what they say!
~*~*~ Kelsey ~*~*~
RIP my sweet Lily ~ 6/12/08 - 1/20/12