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Sir: Primary hyperhidrosis is excessive uncontrollable sweating without any discernible cause. Social fears, induced by facial hyperhidrosis in a patient with panic disorder, responded to treatment with topiramate that reduced excessive sweating and alleviated the fear of embarrassment in social situations.

Case report. Mr. A, a 41-year-old, successful executive in good health, had suffered from panic disorder since childhood.’ ‹’ ‹