IBS-80 is a new safe, painless, non-invasive way of identifying foods that may cause IBS. It uses traditional skin patch testing to identify food allergies by placing patches containing foods and food additives on your back for two days (no needles are used) and then looking to see if you have allergic reactions to any of the foods. If you have any reactions, you are instructed to eliminate those foods from your diet. For many people, when they stop eating the food(s) that caused the reaction(s), their IBS symptoms improve significantly or go away.