C.B.
Get the book "The Kissing Hand". Can't remember the author.
It is about a little raccoon who is afraid to go to school because he will miss his mommy. Mommy tells him the secret of the kissing hand. She kisses his hand and tells him that with that kiss, she is always with him and if he feels lonely or scared, all he has to do is rub his hand on his cheek and he will feel mommy's presence. So, mommy kisses his hand, he goes to school, and when he feels like he's missing mommy, he rubs his hand against his cheek and magically he can feel mommy with him. He has a great day at school!
Kids really like this book. When one of my GD's had to be in a behaviorial institute and was scared to death, I told her the story and kissed her hand before I had to leave. The nurses told me the next day that she kept rubbing her hand against her cheek and when she did, she was able to calm herself down! It really worked!