Excessive sweating, medically known as hyperhidrosis, can significantly impair daily life. Sufferers not only experience visible sweat stains and unpleasant odor but also social insecurity and a reduced quality of life.
Effective Treatment with Botulinum Toxin A
A particularly effective therapy option is the injection of Botulinum Toxin A (also known as Botox). At the Metropolitan Clinic Zurich, we offer this outpatient treatment – especially for armpits, palms, and forehead.
Botulinum Toxin A blocks the release of the neurotransmitter acetylcholine at the nerve endings, thereby inhibiting the activity of the sweat glands. The effect usually begins within three to seven days and lasts an average of four to six months.
Scientific Evidence and Study Situation
Several clinical studies confirm the high efficacy of Botulinum Toxin A in the treatment of hyperhidrosis. Research has shown that sweat production – especially in the armpits – significantly decreases after treatment. At the same time, many patients report a noticeable improvement in their quality of life.
Medical guidelines also confirm the effectiveness of this form of therapy. Intracutaneous injection of Botulinum Toxin A is considered one of the most effective methods for treating focal hyperhidrosis – i.e., where excessive sweating occurs locally, such as in the armpits, palms, or forehead.
1. Heckmann et al., 2001 – New England Journal of Medicine
In a randomized, placebo-controlled study with 145 patients, Botulinum Toxin A was injected into one armpit, while the other received a placebo. Two weeks after treatment, sweat production in the treated armpit significantly decreased from an average of 192 mg/min to 24 mg/min. The effect lasted up to 24 weeks for many patients. 98% of participants would recommend the therapy. PubMed
2. Naumann & Lowe, 2001 – British Medical Journal
This multicenter, randomized, placebo-controlled study with 320 patients showed that 94% of individuals treated with Botulinum Toxin A achieved at least a 50% reduction in sweat production after four weeks, compared to 36% in the placebo group. The effect lasted up to 16 weeks for 82% of those treated. The treatment was well tolerated, with only a few mild side effects. PMC
3. Lowe et al., 2007 – Journal of the American Academy of Dermatology
In a 52-week, multicenter, double-blind, randomized, placebo-controlled study with 322 patients, the efficacy and safety of Botulinum Toxin A in primary axillary hyperhidrosis were investigated. 75% of patients treated with 50 U or 75 U showed a 2-point improvement on the Hyperhidrosis Disease Severity Scale (HDSS), compared to 25% in the placebo group. The median duration of action was 197 days (75 U) and 205 days (50 U), respectively.
Treatment Procedure and Safety
The treatment is almost painless and takes only a few minutes. Before the injection, the skin region to be treated is prepared with an anesthetic to minimize any discomfort. After the treatment, patients are usually immediately able to resume social and work activities.
Conclusion
The injection of Botulinum Toxin A offers an effective and safe method for treating hyperhidrosis. Sufferers can benefit from a significant reduction in sweating and an improved quality of life. At the Metropolitan Clinic Zurich, we are here to support you with our medical expertise and targeted help to find the right therapy for you.
