I was struck by these posts because I would treat each of them the same. Both mother's probably are over-producing. Babies digestive systems are reacting to the strain of high-lactose over-feeding (too much or too rapid consumption of foremilk.) I think the spitting up is probably a less-severe manifistation. While a messy laundry problem, spitting-up eliminates the stress created if things were going all the way through and irritating the infant's gut (Regina's case.) Kathy's advice to put the baby more up-right at the beginning of a fed, allowing baby to come off during let-down, etc. are good ideas. Reassure that the spitting-up baby is just letting off pressure (look at her face when she does, if she isn't upset, in pain, etc. then don't worry about it.) After she "blows" put her back on the same breast when she's ready. She'll have quicker access to creamier, easy to digest milk, and it will stay down. I'd def. go to a one breast per feeding period regimen. Why bother will meds if this works? Regina's baby may have allergies as well, time will tell. But I have seen blood in stools resolve in 5 cases I have personally worked with (and Michael Woolridge told me the same) when mother goes to one breast per feeding period regimen. This means, designate one breast usage for a period of time: anywhere from one to 4 hours. Baby feeds on demand, but during each feeding period only uses one breast. Mother releases a bit of pressure from other side if need be, but doesn't over-stimulate. If this plan works, it ususally works pretty quickly -- within a week improvement will show. I'd probably keep mother off dairy, but that diet she's on is a terrible disincentive and will result in weaning if continued Barbara Wilson-Clay, BSE, IBCLC priv pract, Austin, Tx.