My youngest will be two in a month's time and is frequently biting. There is one other child at the childminder's who has been bitten several times, hard enough to leave a bruise, but my child has targeted adults and their siblings (3 and 5) as well.
We have tried time outs, reward jars, offering alternative things to bite. The childminder is vigilant and most incidents are averted, but every so often my child will seize an opportunity. They've also started to act more destructively - lots of throwing and shouting.
They're in good health, with no major changes at home. Our childminder has looked after them for the last year and they were frequently there before then to drop off/pick up their siblings, so all very familiar.
The other parents are, understandably, very upset and have suggested biting my child back to teach them it hurts, which both I and my childminder think is absolutely the wrong approach. But nothing we try seems to be working either. Does anyone have any ideas? My middle child went through the same and grew out of it, but the phase didn't last so long or cause as much injury.