If I'm pregnant and I been using nasal drops can I beast feed as soon I give birth or do I have to wait a month till nasal is out my system. I really want to breast feed my son as soon as he is born but if it's bad milk for him due to nasal drops then I can just Do formula please let me know what I can do. I just want to know what's best for my soon to be son. people tell me I can't Breast feed because I took nasal drops can affect my son but I just want what's best for him even if I can't Breast feed.