“… 3 , 4 , 5 , 6 Many cost‐of‐illness studies targeted for various countries have been reported in the field of dermatology. 7 , 8 , 9 , 10 Axillary hyperhidrosis causes psychological burdens, such as depression, loss of self‐confidence, and weakness, 11 suggesting significant emotional burdens. Moreover, a Work Productivity and Activity Impairment (WPAI) survey of hyperhidrosis patients who visited a university hospital demonstrated the presenteeism of hyperhidrosis patients to be 47.14%, suggesting the significant effects of hyperhidrosis on work performance.…”