After my normally content-through-the-night daughter woke up screaming and scrunching up her legs and clearly in pain on several random occasions, I started to pay more attention to what I was eating. I found that the worst incidences of this occurred on nights where I'd gone a little overboard at one of the self-serve frozen yogurt places. Anyhow I cut out dairy as an experiment, the incidents stopped and her cradle cap cleared up. To confirm, I ate some very cheesy lasagna one evening, and that night was awful for my baby but at least we had an answer.
Our doctor feels strongly that this is a sensitivity rather than an allergy and that we will eventually be able to phase dairy back in. However, the conversation didn't get more specific than that. I've also seen vague references on the internet about phasing back in but would love to hear some specifics. For example, I am under the impression that kefir or yogurt would be the first thing I would attempt. And I think I will eat it rather than give to her directly, assuming she'll have started solids by the time I would start experimenting with this. But when will that be exactly? Definitely after 6 months. 8? 9? 12? I guess I would love to hear from anyone who's done this as to how it went, and see whether any of you know of any good online resources that aren't vague on the subject.