H.G.
Hi A.,
I had the same problem with my now 3 year old daughter and she started young doing this. and one day she just stopped i got the same advice put stuff in her mouth, bite her back ect... nothing worked so every time she did it i told her i was very sad and that was bad and put her in a play pin and at 3 i know they hate that and walk away and pay no attention to him. when hes done crying make him say hes sorry to whoever he bites. after a while he'll stop honestly what i think is they will stop when there ready and not before my daughter was very bad when it came to this and bit good and hard not just to other kids but me dad grandparents it did'nt matter. he'll stop eventually. they all do!! i hope it helps!
H. and Sara