hi all! my 5 mo. has congestion (like a post-nasal drip that gurgles in his throat) & green poops (sometimes mucousy) since birth. he also got eczema a month ago. the doc said it's probably something i'm eating. i asked if it could be my dog, pollen outside, dust... he said it's highly unlikely; that it's probably something i'm eating. i can't understand how a baby can't get congested from dust, etc. can he? doc said to cut out berries and citrus first. i thought maybe try dairy first. opinions please!!! tia!