Brianna was able to tolerate dairy at 11 months. I agree with Christine that two weeks should be the time frame, but I also think that just becuase of one bad night don’t automatically think it is the dairy. There needs to be a consitant pattern. Everyone has a bad nights sleep every now and then, but if it is night after night…that might be a problem. As far as the other symptoms (rash, blood/mocus…they should be apparent rather quickly, and should be an early indicator to stop the dairy. Good luck and keep us updated.