Itching during night time

Patient: Hlo doctor! i like to ask a questionmy brother is 13 yrs old.. he has a problem of itching mostly during night time,,, he used to scratch his body and makea wound in his body,,, he used to take a medicine allegra250 mg ,cetrizine syrp,permethrin lotion,fusidic acid cream..

Symptoms: Itching,wounds,