Yesterday a mom called me to tell me that all was well with her and her 4 month old, but that they had both had cold/sinus type symptoms and her MD had put her on penicillin. She went on to say that she knew the penicillin was okay with breastfeeding, but she had been instructed to feed the baby an ounce of formula after each nursing because of the small amount of medication in her breastmilk. Traces of that in the baby's mouth could cause a thrush infection in the baby according to her doctor. I know, and you know that this is not necessary. But how can I respond to her and still be nonjudgemental about the information her health care provider has given her? She has complete trust in her MD and is very happy with the care given by him. How could I have been diplomatic in an answer? Ann Calandro,RNC,IBCLC North Carolina