K.P.
Hi T.,
I worked in a daycare right out of college. I cared for two-year-olds for 1 1/2 years. The director of the day care would put the child in a high chair and give him/her a washcloth he/she was supposed to chew on.
My mom did what April L did. I never bit anyone ever again - according to Mom.
I like what Kris S said about finding what the triggers are. Is it for attention, is it sensory overload, is he just learning appropriate social behavior. I like all of what Kris S said.
If it is just for attention or learning social behavior try the high chair and wash cloth along with what you are saying. I like saying what you want him to do instead, also. Have the day care do the same thing you are doing. We were always happy to do what the parents wanted (with in reason). I would also find out what they are doing with the other kids who bite. If they don't follow through I would find another day care. Maybe a home daycare with fewer kids.
Good luck!