How can the parents say he isn't lacto intolerant???? How the hell do they know?? I would have asked them if the child had ever been tested because without the test how can they know for sure. IMO you should have insisted that he goes to the doctors before he will be allowed to return to daycare. I would document every bowel movement, time and also what the child is eating and at what time so the parents have something to take to the doctors. Sounds like once diagnosed its probably a simple fix, but if you don't insist they go to the doctors then they won't and you'll be forced to terminate which in my opinion could be avoided. Do you have a sickness policy?? My policy states no child with diarrhea will be allowed into care. They can not return to care without being 24 hours symptom free. If you have a policy and they aren't sticking to it, you need to enforce it immediatly for the safety of the other children. Regardless of whether the child has an intolerance, and allergy or something else, faeces are extremely dangerous and it just wouldn't be acceptable to have this child in my daycare without having sort medical attention. I couldn't give notice to this family without having done everything in my power as the caregiver first. I think this kind of thing comes with the territory of this job and while I appreciate it is a huge problem to deal with while caring for the other children, I think it would be much more productive and helpful to the child to insist on them seeing a doctor rather than just terminating and leaving it to someone else to deal with.