My son has had red irritated bumps in his tummy, groin and behind his ear. His butt cheeks were red but we stopped using diapers and that went away. He is exclusively breastfed but he will have a bite of what we are having every other day... I don't know what is causing this irritation. Is it the bath water (we don't use soap on him or lotion or anything)? Is it the occasional bite of solid food on his sensitive system? He isn't vaccinated ever, we don't have pets, we use natural castille soap on our clothes. I am at a loss. Any ideas?