Just thought i would update.

We have now been dummy free for over a week!!

I have hidden it in the food cupboard right up the top where she cant reach or see. I pretended to find it and but couldnt and she accepted it and wentto bed. Same thing went on for 3 nights and since then she's only asked for it twice and only at night. I said, remember we cant find it and she had a whinge for 1 second and then said night!

Her speech is getting better already in that i can understand her. Her lisp is still there though.

Thanks everyone for all the advice. It looks like it's worked!