You should not be mistaken thinking that your kid will get used to the nurse in 2-3 days. Depending on character of the kid, his age and the nurse, process can be dragged out for several weeks or even months. Try to accustom the child gradually, and then you will be able to avoid daily tears and hysterics when parting with it.
1. Invite the nurse home for acquaintance to the child. Do not worry if the kid does not want to make contact. The good nurse has to try to interest the ward in a game or communication. After 3-4 daily visits of the nurse to your house leave the child alone with her, kind of having inadvertently left to the neighboring room, and track reaction of the child. If the kid did not begin to look for at once mom, and continued to be played and communicate, in 1-2 days try to leave in shop for 15-20 minutes "behind bread". Daily you come for walk together with the nurse, the child has to get used to her constant presence. Approximately in a week send the kid for walk together with the nurse, and stay at home and wait for them return.
2. Most likely, at first the child will be capricious or even to cry, worrying because there is no mom nearby. Pay attention to reaction of the kid during arrival of the nurse, the unwillingness to remain with it alone most often says that the kid is not ready to long separations from mom yet or that she treats it not really kindly. If you doubt the nurse, establish bugs or video cameras to confirm or disprove the suspicions.
3. If reaction to your short lack of the house is normal - the child will not cry at all or will cry not for long and quickly begin to calm down every day add on an hour to intervals of your absence. If the child while you there is no house, rolls up hysterics and sobs, slow down accustoming process a little, reduce for a while duration of your absences or refuse them completely for several days.