food allergy?

So...it turns out that Bauer has officially had ALL of the symptoms for a food allergy:

• Yeasty ears (since we brought him home from the breeder)
• Eye infection (most recent symptom)
• Anal gland issues
• Itchy skin

So, I was in denial after his doctor mentioned that a food allergy may be the cause of his ear issues after he was neutered, but now that he has an eye infection I am in FULL PANIC MODE.  I made the mistake of looking at the online forums for other labs with food allergies and am now constantly inspecting Bauer for missing clumps of hair...it may be thinning around his eye that is infected...or I may be making that up?  I don't know...but the fact that he had a GIANT TICK ON HIM FULL OF BLOOD four weeks ago does not make me feel any better about any of this.  Needless to say we are taking him to the vet on Saturday morning and I am going to tell them everything and probably have them run every test possible.  

Oh...did I mention just how expensive it is to feed a 100 lb dog who has a food allergy?  VERY...but look at how adorably amazing my little man is?!?!