New trends in botulinum toxin use in dermatology.

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Recent studies have highlighted new botulinum neurotoxin (BoNT) applications in the field of dermatology.

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To review current knowledge of BoNT use in dermatology.

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The literature of the last 5 five years has been reviewed.

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We describe interesting protocols of BoNT treatment for hyperhidrosis (HH), hypertrophic scars and keloids, Raynaud phenomenon, facial flushing, oily skin, psoriasis, Hailey-Hailey disease, and cutaneous lesions like painful lesions and periorbital syringomas.

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Several skin conditions eligible for BoNT treatment have been described. After the wide application for HH treatment, scars as well as vascular and inflammatory skin disorders, oily skin and cutaneous lesions represent fields of application of BoNT.