Hi there. I'm looking after my friends bulldogs for an undetermined amount of time. I've switched them to raw as my friend always had allergy issues with them. So far so good except that one seems allergic to chicken (hotspots and goopy eyes). I've been feeding raw for 11 years and haven't had a dog allergic to it before. Especially not chicken, which is such a key component. So should I try turkey or some other poultry, or is this likely a poultry itself allergy? What do I do for bone/calcium is she can't have birds?