What causes excessive sweating?
Hyperhidrosis can be caused by a variety of factors. In some cases, it can be linked to underlying medical conditions, such as thyroid disorders, diabetes or certain infections. Hormonal imbalances, such as those that can occur during menopause, can also cause excessive sweating.
In other cases, hyperhidrosis is caused by overactivity of the sympathetic nervous system, and can therefore be aggravated by factors such as stress or strong emotions.
Which areas of the body are most affected?
Hyperhidrosis can affect different parts of the body. The areas most commonly affected by heavy sweating are the armpits, hands, feet and face. However, hyperhidrosis can also affect other parts of the body.
Treatment of hyperhidrosis with botulinum toxin injections
So how can hyperhidrosis be treated? If traditional treatments such as deodorants or certain medications are not sufficiently effective, more advanced solutions can be considered. One such solution is the treatment of hyperhidrosis with botulinum toxin injections.
When injected into the skin, botulinum toxin acts on the nerves that control the sweat glands. It blocks the nerve signals that trigger sweat production, which can help reduce excessive sweating.
Botulinum toxin can be used to treat hyperhidrosis in many areas of the body. The areas most commonly treated by our patients are the armpits, hands and feet, or other areas such as the face.
The benefits of treating hyperhidrosis
- Effectively reduces excessive perspiration
- Treats areas such as underarms, hands, feet and face
- Visible effects from 2 days, up to 4 months
- Quick procedure
- Painless injections with anesthetic cream
- Mild, temporary side effects.
- A safe solution to ineffective treatments

Frequently asked questions
What is Botox® and how can it help treat hyperhidrosis?
Botox, or botulinum toxin, is a naturally occurring substance that blocks the nerve signals responsible for activating the sweat glands. When injected into areas of the body where perspiration is excessive, Botox can significantly reduce sweat production.
Is Botox® treatment painful?
Botox treatment involves injections under the skin, which may cause slight discomfort. However, we use a very fine needle to minimize pain, and an anesthetic cream can be applied before treatment to improve patient comfort.
What are the contraindications to Botox?
Before considering any treatment for hyperhidrosis, it’s essential to be aware of the various contraindications:
- Myasthenia (neuromuscular disease)
- Pregnancy and breastfeeding
- Recent use of anticoagulants or anti-inflammatory drugs
It’s also important to note that botulinum toxin can interact with certain medications, including some antibiotics. If you are taking any medications, be sure to inform your doctor before starting treatment.
How long does Botox® treatment for hyperhidrosis last?
The effect of Botox treatment for hyperhidrosis generally lasts between 4 and 6 months. After this period, injections can be repeated to maintain results.
Are there any side effects after Botox® treatment?
Botulinum toxin injections are extremely well tolerated, but as with any medical procedure, side effects can occur. These side effects are generally mild and temporary. After treatment, you may experience slight pain or discomfort at the injection site. Some people may also develop temporary bruising or swelling. These side effects should disappear within a few days.
In very rare cases, more serious side effects (allergic reaction) may occur. It is important to discuss these risks with your doctor before treatment.
Is Botox® treatment safe?
Botox has been used for many years in various medical fields, including dermatology, and has been proven safe and effective for the treatment of hyperhidrosis. However, as with any medical treatment, it’s important to discuss your medical history and any medications you’re taking with your doctor before starting treatment.
Your journey in 3 steps
- Consultation
- Treatment
- Follow-up



At a glance
Approx. 30 minutes
On an outpatient basis
1 day
You can resume your daily activities immediately, but avoid sport for 24 hours.
Treatment of hyperhidrosis with botulinum toxin offers effective, long-lasting results in a single session. Follow-up sessions are recommended every 4 to 6 months, depending on individual response to treatment.
The result
After underarm botulinum toxin injections, you can expect a significant reduction in excessive sweating as early as 48 hours after treatment.
The optimal effect is generally seen within 2 weeks of injection, with a reduction in sweat gland activity that prevents the production of sweat. Results are long-lasting, often lasting between 3 and 4 months, after which another session can be scheduled to maintain efficacy.
This treatment is discreet, fast and gives you lasting comfort on a daily basis.