Two weeks ago, my son’s peanut allergy once again brought me to tears. Before you take a gasp, I want to let you know they were tears of pure unadulterated joy. My son, Joshua, has been part of the Peanut Patch Study conducted out of Icahn School of Medicine at Mount Sinai hospital. He wears a tiny patch of peanut proteins on his skin every day in the hopes that it will help him become more tolerant to his allergen. We are currently in year two of the study.