J.C.
My little girl had this also and yes it is very contagious! He needs to stay away from other kids until he stops running a fever. You shouldn't get it as long as you don't drink after him. No need to wash his sheets everyday or get a new toothbrush for everyday. He will build up antibodies so he will be less likely to get it again. (But just so you know there are several forms of this virus) My daughter has had 2 different strains of it and the hands foot and mouth was the WORSE! You might boil his toothbrush everyday. The maalox/benedryl combo works ok, but it didn't help that much.