After the MiraDry treatment, your underarm sweat and odor glands are eliminated. However, your body still has a significant number of sweat glands (2-4 million in total) to cool itself, and only about 2% of them are located in your underarms. Removing this 2% does not affect your body's ability to regulate temperature. With over 80,000 treatments worldwide, MiraDry is a safe and effective solution for sweat-free underarms.