I posted a thread on here a few days ago about red spots on guinness back, but I checked tonight and the red irritation has scabbed over a little but not there is a patch of hair missing on top of the scabbing...thinking it's mange from reading about symptoms..the scabbing is almost falling off and looks like irritation spots...will have to get him in the morning, doesn't appear to be itching too much and it doesn't appear to have spread anywhere else