Wonders never cease. A woman that battled excessive sweating for year. Linsey davis has her story. ♪ Reporter: Everybody sweats. Even gorgeous superstars like halle berry who h talk about it on... See More
Wonders never cease. A woman that battled excessive sweating for year. Linsey davis has her story. ♪ Reporter: Everybody sweats. Even gorgeous superstars like halle berry who h talk about it on ellen. I was so nervous for those guys, I broke out in a -- wow. Reporter: Imagine being so embarrassed about your body that you don't want to leave home. It's stressful. It's really hard. Reporter: For year, 20-year-old brianna's been keeping a secret so hidden, she missed her senior prom. Didn't want to go through the hassle of picking out a dress. I blew it off. Reporter: It was all an effort to mask the profuse sweating under her arms. Look what happened after ten minutes of talking to us. Her sweat is so extreme there her armpits her clothes are often wet all the way to her stomach. After one use, certain shirts are stained to badly, she has to throw them away. She wears layers and the color back all the time because they held top hide sweat. Everything I have is black. Reporter: After topical collusions and botox, head to she's trying something new. If it stops the sweating, she has a plan. I'm going shopping. Reporter: Behold, it's called miradry. 90% of patients and probably more completely eliminate the sweating perm interceptly. It's not like they don't sweat at all. Reporter: Using microwave energy, it stops the sweating, hyperhidrosis. The doctor gets started. I tried to much. I'm so anxious to have it work. Reporter: Four months after the second treatment, we meet up with brianna again. Before, I was uncomfortable. It's exciting to go out. I can whaert I want. Reporter: She still sweats. But a whole lot less. Now she doesn't worry about sweat stains. I can hold them on my hips, fix my hair in public. Reporter: No problem. No sweat, I should say. We thought we would take her shopping. You can get whatever you would like now? I knew you were going like that kror. I have always liked pink. Have never been able to wear pink. Reporter: The only thing that might stain her shirt today, tears, not sweat. You're so excited. We're so happy for you. For "good morning america," linsey davis, abc news, boston. Thank you. Some say a lot more study is needed to see if it is effective the long term. The two treatments can go to about $2500 or $3500.
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