For underarm sweating that antiperspirants have not controlled, in our clinical judgment yes. It is one or two sessions of about an hour to ninety minutes, under local anaesthetic, and the published follow-ups run to about three years. In the randomised trial, 69% of treated patients still rated their sweating never noticeable or tolerable a year later; in a study without a comparison group, sweat collected and weighed was 82% lower on average at a year. It treats the underarms only, and for the people who want hands, feet or a back treated it is the wrong tool, and we say so. The price is set per session and per course, in writing at a free consultation at Sweat Hospital, 130 Harley Street, with a price match on any comparable written quote.
What the studies measured
- 120 adults, randomised and sham-controlled, 2012: 81 treated, 39 sham, on an earlier version of the device, most with two sessions about two weeks apart. At 30 days 89% of the treated group rated their sweating never noticeable or tolerable on the standard four-point scale, against 54% of the sham group; 74% at three months; 69% at twelve months.
- 31 adults, no comparison group, 2012: sweat collected and weighed was 83% lower at 30 days and 82% lower on average at twelve months, and 90% rated their sweating never noticeable or tolerable at twelve months, after one to three sessions.
- Three years on: a 2026 Swedish follow-up of 103 treated patients, of whom 87 were contacted and 45 answered, found the typical score had moved from "barely tolerable" to "tolerable" at three years. A 2021 telephone survey of 18 patients at an average of 38 months put the reduction at 61% to 70%.
- 139 patients, one Austrian clinic, 2025 (retrospective, newer miraDry fresh protocol): 84% were treated with one session, and on a starch-iodine sweat test 95% had no or minimal sweating after treatment.
- Against injections, 2024: in a trial that treated one underarm with each, sweat collected and weighed at one year was the same for the microwave treatment and for botulinum toxin, and 76% preferred the microwave side; most said they valued avoiding continuous treatment.
Our patients review the clinic on review.clinic, where the clinic holds 4.9 out of 5 from 82 reviews, with 100% saying it was worth it (November 2026).
What you are paying for
A session is one visit of about an hour to ninety minutes. The underarms are marked, numbed with local anaesthetic, and the handpiece treats each in up to 20 minutes, heating the layer where the sweat glands sit while the skin is cooled. Most people need one or two sessions, the second about three months after the first. The manufacturer says the destroyed sweat glands do not grow back, and the follow-ups to about three years show the result holding. Injections work for months and are repeated; miraDry is one or two sessions.
The honest limits
It is cleared in the US for the underarms and for no other area. The underarms are swollen and tender for days and bumpy and numb in patches for weeks, and in the randomised trial 10% had altered feeling in the skin of the upper arm that lasted about two months on average. The downsides page gives the risks with their figures. Odour and hair are often reduced as a side benefit, not the main result; the underarm page explains.
Book a free consultation
Call Sweat Hospital on 0207 043 1116 or use the form below. The clinician scores your sweating, tells you whether one session or two is likely, and gives you the price in writing.
