Our son has had allergy issues since birth and is on Nutramigen. Recently he started reacting to something again (baby food?). We can’t nail down what it is so we took him back to formula only for a few days and started adding one thing back at a time. So far on this new try he’s had reactions that make me think he’s allergic to a preservative?? So I’m going to try homemade baby food / Whole Foods only. Can anyone give me advice? I’ve never dealt with this and I feel like I’m not nourishing him enough on just Nutramigen and one fruit a day. I’m waiting for an allergist referral from my ped. But the process is taking forever .