Ultrasound images will be captured of each axilla to assess dermal thickness and depth of sweat glands. A gravimetric measurement of sweat production and starch iodine test will be performed prior to treatment. Digital images of the starch iodine test will be obtained. Hyperhidrosis Disease Severity Scale (HDSS)scores will be obtained prior to each treatment. During treatment, the average Numeric Rating Scale (NRS) score will be obtained by axilla treated. Efficacy will be determined by a reduction in the number of sweat glands from baseline to 90-days post-treatment, as evidenced by histological analysis. Subject Gravimetric results, Starch iodine results, and HDSS scores at all follow-ups compared to baseline will also be analyzed as secondary outcomes.