I feel like a shite mother. What am I supposed to do with a 'biter'?

[kittycrackles]

DD3 22 months, has been becoming more and more 'assertive' these last few weeks.
Yesterday she was truly shocking. She trashed the kitchen , attacked her sibs and bit( badly) 2 little children on their cheeks at playgroup. The mums and leaders at playgroup were so sweet about it. I burst into tears and said I couldn't keep on bringing her if she's going to attack other children.
She used to be such a sweet-natured girl.
Those of you with 'biters' what do you do?
Those of you who've had 'biters'; how long did it last?
Help this makes me feel like such a crap mother

Another thing. Pay attention to the other child (the child that has been bitten). Make sure that they are OK, make a lot of fuss about the other kid.

I wouldn't leave the group though. They have to learn to deal with a situation, not to get out of it if they are naughty. ut that's just me I guess. I've seen my sister leaving parties, dinners, family get togethers because her daughter was misbehaving. I don't want to do that with DSs.

I go to a playgroup where there's a little girl who keeps on pushing other kids. She doesn't only push them, she slaps them in the face and scratch them in the face. THe mum only pays attention to her DD when she is naughty. That's the wrong message I think. You have to pay attention to the other kid before your own, and when you get to your kid punish her in front of the other kids. I wouldn't remove her from the room. If DS would do this, I would go to the other kid make sure he/she is OK, tell DS off right there, on the spot, and put him in a corner for 2 minutes, in front of the other kids. And he would have to apologise afterwards.

Bp I think that's also the way to go. We went to music today and she was very well behaved. She did bite the baby's toes again today though so I put some more vinegar on her tongue!