Not sure about the dye. But, my 4y.o. has been seeing AZ Allergy Associates at 705 S. Dobson Road on Frye/Dobson (near Chandler Regional) ###-###-#### for 2 years now. He sees Dr. Duane Wong. He has been skin tested twice - and each year more allergies than the next, we've recently been to a nutritionist because he also has autism, and trying to determien whether or not he should do the autism diets or not. There's just too much to eliminate and then there'd be nothing for him to eat. So he's going to get re-evaluated in April.
But, also, he has environmental allergies too. He's actually getting his ear tubes and adenoids removed in a couple of weeks. Hopefully that will eliminate the daily nose picking too.
If you want more info, email me.
Good Luck!