i'm fairly new so i can't really offer much but when you mentioned milk bone treats it hit home with me. i started a thread recently stating that i had been giving my bully a few bites of those medium milk bone buscuits as my choco lab eats them. well within that week my bully broke out and was itchy. i stopped the treats and used benedryl for a few days and it all went away. i knew they were not the best and rarely even give them to my lab but i didn't realize just how sensative bullies can be. hope you get it figured out soon.