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From the information given by you, it seems your daughter is suffering from Trichotillomania,
a condition where the person develops the habit of twisting hairs around his/her fingers and pulling it when he/she is psychologically disturbed.
Take care as the child may even suck or eat the hairs but don’t worry as this habit in children can be treated completely.
Consult a Psychologist or Psychiatrist for further management.
This answer is for information purposes only and is not intended to be a substitute for professional medical checkup, advice, diagnosis, or treatment.
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