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EXCESSIVE SWEATING TREATMENT : BOTULINUM TOXIN BEFORE/AFTER RESULTS

Last updated : 8 June 2026

The excessive sweatingcondition, known as hyperhidrosis, affects many people, although it is often ignored or minimised. It may be localised (armpits, hands, feet, face) or sometimes generalised and become disabling in daily life. Many patients seek lasting, effective solutions to regain clothing comfort and peace of mind. Among available treatments, botulinum toxin injections stand out for effectiveness and good tolerance in primary axillary hyperhidrosis.

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Before treatment : symptoms of excessive sweating

• Unpredictable sweating : the most striking feature is its spontaneous nature, with sweating without excessive heat or exercise, sometimes even at complete rest. This constantly surprises patients and increases discomfort. Brief stress or prolonged concentration may trigger abundant sweating.
• Constant physical discomfort : hyperhidrosis causes significant clothing patches, often from the morning ; persistent, uncomfortable moisture prompting repeated washing. Constant sweating also creates secondary problems : irritation, rashes, bacterial or fungal growth and sometimes persistent odour despite excellent hygiene.
• Social and psychological distress : before treatment, the most insidious aspect is its psychological impact : fear of judgement about odour or appearance ; constant anticipation (clothing choices, avoiding physical contact) ; professional embarrassment (stress when presenting documents or appearing publicly). Patients describe more than excessive sweating, but a form of functional isolation : adapting daily life to hide or avoid symptoms.

After treatment : symptoms disappear

Results of botulinum toxin treatment for primary axillary hyperhidrosis are well documented and often dramatic.
Studies report a significant reduction (80 to 90%) in excessive sweating.
The product temporarily blocks nerve-signal transmission to sweat glands, interrupting sweat production in the targeted area.
In most cases, treatment effects appear between the 3rd and 5th day and reach their full extent around the 10th to 14th day.
Patients notice a clear, immediate difference compared with before treatment, both physically and in everyday comfort.
Patients treated for axillary hyperhidrosis often perceive results as genuinely liberating. Within days, excessive sweating markedly decreases, even under stress. Sweat patches disappear, clothing can again be freely chosen without restrictions on colour, cut or fabric, and repeated showers are unnecessary. Freshness and cleanliness feel constant, natural and lasting. Patients often express relief simply and spontaneously. As one explains : “I can raise my arms without thinking. Before, even in winter, I felt drenched under a jumper. Today, I do not even think about it.”

Lasting, well-tolerated results

One session lasts approximately 6 months, depending on the area, injected dose and individual response. The product causes no dependence, and adverse effects are rare, temporary and localised.
No compensatory sweating is observed, unlike with certain invasive surgical treatments. Botulinum toxin acts locally without disrupting the body's nervous system.

Changes over time : experiences at 2 weeks, 3 months and 6 months

Botulinum toxin treatment results for hyperhidrosis evolve over time, and patients often describe this timing precisely.

  • At 2 weeks, rapid, tangible relief : from the first days, most patients notice reduced sweating in the treated area. Some see gradual changes from the 3rd or 4th day, but the clearest effect comes around the second week. This is often a quiet but profoundly significant turning point. Patients rediscover simple experiences : wearing a light-coloured top without checking beforehand ; concentrating without thinking about sweating. This period also brings quiet surprise : many did not expect such a rapid effect, especially after years of unsuccessful conventional products.
  • At 3 months, stable results : results are generally fully stabilised. Patients no longer see the treated area as something requiring vigilance. Treatment is part of their routine : they no longer think about it, which is precisely the relief. Sweating is absent or so minimal that it causes no difficulty. Some also report reduced compensatory behaviours (spare clothes, excessive wipes, social withdrawal). This perspective reveals how much sweating previously controlled them.
  • At 6 months, symptoms return : around the 5th or 6th month, some patients begin noticing very slight sweating recurrence, mainly during stress, heat or exercise. It is neither sudden nor generalised but marks gradual fading of the effect. Most satisfied patients choose regular treatment every 6 months.
Dr Valeria Romano

Article written by Dr Valeria Romano

Dr Valeria Romano supports each patient with a comprehensive approach to the aesthetics of the face, body and intimate areas, and to skin and hair quality. Every treatment is based on a personalised medical assessment.

Learn more about Dr Valeria Romano
Contact Dr Valeria Romano : +41 78 209 02 89 dr.romano.valeria@gmail.com

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