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June 2011

Writer’s Block: “Texting” Impairment as a Complication of Botulinum Toxin Type A Therapy for Palmar Hyperhidrosis

Author Affiliations

Author Affiliation: Department of Dermatology, Mayo Clinic, Rochester, Minnesota.

Arch Dermatol. 2011;147(6):752. doi:10.1001/archdermatol.2011.143

A 17-year-old girl with a long-standing history of primary focal hyperhidrosis of the palms presented for botulinum toxin therapy. A 3-month trial of aluminum chloride hexahydrate, 20%, solution (Drysol; Person & Covey, Glendale, California) led to no substantial improvement. Treatment with supersaturated concentrations, a reasonable next step in the treatment of palmoplantar hyperhidrosis,1 was not attempted. An iodine-starch test of the palms (Figure) revealed hyperhidrosis involving both palms.

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