Biting constantly

Determine the cause. Is it to get your attention, because they are frustrated? Usually there is a reason they are failing to communicate other ways. As awful as it is, i think it's something they outgrow or work through. I tried everything and teaching them to sign or talk was when the biting ended. Usually when they were frustrated was when they bit, occasionally they would be seeking positive attention or trying to show affection and that took time for them to understand that biting is not a way to generate a positive response. If it's just to get a rise from you continue to not to response dramatically. Just a simple we dont bite is enough and removing myself to another area or engaging myself elsewhere was enough to take the reward response she was getting by the big ouch response she was hoping for.