out of he bit and would tell him with a firm voice no biting teeth are for food not people. that took about 3 months but it finally worked. the only time he bit after that was if he was really mad. which i talk him baby signing and that help cut that out.
my daughter went through the same thing (sometimes it was because of teething pain, but primarily when she was angry). we were very consistent with removing her from the bitten part (mostly hands/fingers, sometimes anywhere she could get a grip) and telling her that biting is not nice and we don't do that to people.
once she got 