Excessive Sweating in Aurora

If you struggle with excessive sweating, you likely have tried wearing breathable fabrics, using absorbent pads, avoiding triggers (such as spicy foods or caffeine) and strong/prescription antiperspirants.

Botox is one brand of botulinum toxin. For underarm sweating, Botox is the botulinum toxin authorized in Canada. Xeomin is another option your physician may discuss; its use for sweating is off-label, as is treating the palms, scalp or forehead with either product. Results typically last about 2 to 6 months.

Medically reviewed by Amber Bocknek, MD, CCFP, ABAARM, FAAMM, MSCP, Medical Director, November 4, 2026

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Botulinum toxin injections are a well-established treatment for focal hyperhidrosis, especially in the underarms. The toxin temporarily blocks the nerve signals that switch on sweat glands in the treated area, and results typically last about 2 to 6 months.

Some private health plans may cover the medication when it's medically necessary, so it's worth checking with your insurer. Keep your receipts, too: treatment for a medical condition may qualify as a medical expense, so ask your accountant.

Also known as: hyperhidrosis, armpit sweating, excessive perspiration, sweat reduction, underarm sweating

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Frequently Asked Questions

Q: Which areas can be treated for excessive sweating? A: The underarms are the most common area, and Botox is approved in Canada for underarm sweating in adults (Xeomin's use for sweating is off-label). The palms and scalp can also be considered, but treating those areas is off-label, so your physician explains the evidence and possible side effects, such as temporary hand weakness after palm treatment, before you decide. sweating?

It can reduce it. Botulinum toxin temporarily blocks the nerve signals that switch on sweat glands in the treated area, and results typically last about 2 to 6 months. Botox is approved in Canada for underarm sweating in adults, and Xeomin may also be discussed, though its use for sweating is off-label. Other areas, such as the palms and scalp, can also be considered, but those uses are off-label and are discussed at your consultation.

What is excessive sweating, and how is it different from regular sweating?

Excessive sweating, also called hyperhidrosis, occurs when you sweat more than is necessary to regulate your body temperature. It can occur in specific areas like underarms, hands, feet, or face and is often not triggered by heat or physical activity.

Q: Which areas can be treated for excessive sweating? A: The underarms are the most common area, and Botox is approved in Canada for underarm sweating in adults (Xeomin's use for sweating is off-label). The palms and scalp can also be considered, but treating those areas is off-label, so your physician explains the evidence and possible side effects, such as temporary hand weakness after palm treatment, before you decide.

Botulinum toxin blocks the nerve signals that trigger the sweat glands in the treated area, such as the underarms. Results typically last about 2 to 6 months.

Are botulinum toxin treatments for excessive sweating painful?

The injections use very fine needles and are generally well tolerated, though you may feel mild discomfort. The treatment is quick, and downtime is usually minimal.

How long do the results last?

The effects typically last around 2 to 6 months. As the treatment wears off, you may schedule a follow-up session.

Does my insurance cover botulinum toxin for excessive sweating?

Some private health insurance plans may cover botulinum toxin (Botox) for hyperhidrosis when it's considered medically necessary, so check with your insurer. Treatment costs may also be eligible as a medical expense; check with your accountant.