Biting is very common in early childhood. Babies and toddlers bite for a variety of reasons, such as teething or exploring a new toy or object with their mouth. … Frustration, anger, and fear are strong emotions and toddlers lack the language skills to communicate how they are feeling.
Keep the daily routine predictable. Predictable routines help children feel more comfortable and reduce the stress and frustration that sometimes leads to biting.
Provide close supervision. …
Reduce the frustrations of sharing toys. …
Be patient and consistent.
Remain calm. Without losing your own temper, firmly carry the child who bites away from the person (whether child or adult) whom he is biting. …
Reassure him. …
Follow it through. …
Be positive. …
Never bite back.

An older post. Did you find a solution?

there are some good comments here

is it your kid or someone else

Did any of the advice below help?

telling them it is naughty and putting them in a naughty spot away from the other children

How are they going now? And suggestions help?

how did it work out?

How did you go about it?

Is it your child biting or theirs?

Its a phase – like many more to come. Just ignore it- it will pass

Only thing I can think of is keep telling them its very naughty, don’t do it, be stern and try and get them to look at you when your talking with them so they know your serious.

Sadly I agree that it is something they just have to grow out of-a phase. My son did the same thing-his poor sister bore the brunt of it, but am happy to say he has grown out if it and my daughter still has a full head of hair.

goodluck, it is such a difficult thing to get them out of. I think they just need to grow out of it

A big Loud NO should do the trick and remove them from the area. A simple NO that’s naughty might help but must be LOUD.