Peanut allergy can be deadly, and evidence shows that it affects nearly 2% of people in some Western countries. While the standard treatment for peanut allergy is to avoid exposure, oral immunotherapy is a heavily debated treatment option. An editorial published today by Wiley in Clinical & Experimental Allergy reviews the literature for peanut oral immunotherapy, specifically examining the effectiveness of Palforzia, the first licensed peanut allergy treatment.