Extreme biting

[Shocked33]

I'm wondering if anyone can help. My son is 3 next month, he bites everyone and everything.
His current favorite victim is his 19 month old sister.

It's awful, I cannot describe how awful. I am at breaking point.

He goes to nursery where he is wonderful and exhibits amazing behaviour except he refuses to speak there. At home his language is way above average from what we see and the footage and videos we show nursery

Nursery try and help with the biting, we have a million books, we have a naughty step, I've looked at everything online, every Instagram hash tag going. I've asked every family member, I feel I have exhausted every avenue.

Sometimes it stops for a few weeks, out of the blue and then it comes back

I just don't know what to do, I guess I am posting out of desperation to see if anyone can think of anything we haven't?

I'd really value any ideas.

Thank you

What are the consequences for biting? You mention the naughty step, is that it?

The naughty step? I've tried taking taking. I've tried shouting, I've tried being gentle. Maybe I've tried too much If I'm honest.

The problem is my husband is currently posted away and I have a long term illness so it's hard. It's not an excuse though.

I think aswell I don't know what I'm meant to do first or how to do it, do I comfort my daughter who is upset or reprimand my son for his behaviour or both somehow?

Always give attention to the victim first. You hug her, kiss her, turning your back to your son. Then gently put DD down, and with a very very stern voice, you say this is so wrong, I don't want you to do that. And you take him to your bedroom, not his, where he has toys and books, but a very boring room. You tell him. Every time you bite, you will be alone.

But this is for the biting has happened. Obviously , avoiding it is ideal.

So, I would go to him now, when there is no situation escalating and tell him, today is a new day. It is the day you will never ever bite again. Biting is wrong and nasty, and it is not who you are. If you bite, you will be punished. do you understand ? we all have moment in which we are displeased but we cannot bite. You do it, you will be punished. Great, now take a book , I would love to read with you.

Try to not give him attention when he bites. And on the other hand try give him more attention when he doesn't.
It's just a phase he's going through. Easy for me to say but I've experienced it with my first boy.
He was biting everything like a werewolf. We established boundaries what is right to do etc. Just make sure that once boundaries are in place there is no negotiation.
There's a line and once he crosses it, then you aren't happy with him. And that's the punishment for him. Mom not happy with him.
For my wee boys the worst punishment is that I tell them that they are not being good and I'm cross with them.