Dd10 has a terrible finger nail biting habit, all nails are bitten about half way down. I've tried the special nail polish which works for a week or two but once she stops applying it she's straight back at it. And it seems the habit has just transferred to knuckle cracking instead, which she now does constantly. I've tried rewards and incentives. I've tried explaining the long term effects on her fingers, not to mention the germs. Nothing seems to work and I'm at a loss! Any advise? Has anyone managed to crack the habit?
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