If your baby gets sick before the start of the program, we will wait for her to start feeling better as we want this process to be as gentle as possible for your baby and you. In case your baby becomes sick during the program, we will discuss how serious the condition is, and depending on what phase of training you are in, we will make certain modifications and continue. As for teething during training, it certainly might cause discomfort in sleep, but it is not something that we won’t be able to work through.