I am sorry if my post was not clear, but he was not reactive to wheat. In fact it seems he was not reactive to most things that are a problem with other people. (Wheat, Dairy, corn, soy, nuts all were fine).
He is in the sun all day, as he works outdoors. This was one reason we found it so strange his Vitamin D is low.
I have taken Colloidal Silver before myself for colds. He uses a silver gel on his skin, but it does not seem to help. How much do you take?