Hi Donna,
Hair and saliva tests are completely unreliable so don’t bother basing a diet off of them. I sent in IV solution as “saliva” and cotton from the swab in the kit as “hair” to Glacier Peaks and my “dog” was reported to have numerous sensitivities. A couple vet dermatologists did testing with Immune IQ and found the tests unreliable.
http://news.vin(dot)com/vinnews.aspx?articleId=44539
That said if you want to look further into adverse food reactions as the cause of your dog’s problems talk to your vet about doing a proper elimination diet using a vet diet made for this purpose or a home made diet. You can find more information here. http://www.veterinarypartner(dot)com/Content.plx?P=A&S=0&C=0&A=2499
