Botox Sweaty Underarms

Is Botox the best treatment option for Excessive Underarm Sweating? (Underarm Hyperhidrosis)

Botox is not just used for wrinkles. What is less commonly known is that Botox can have huge benefits for those who suffer from excessive underarm sweating (hyperhidrosis).

Underarm hyperhidrosis can be quite embarrassing depending on the social setting because of body odour as well as sweat stains on the clothing.

Read on for more information about how botox injections can help with hyperhidrosis, and read about how botox compares with the other treatment options for hyperhidrosis.

What is Underarm Hyperhidrosis ?

It is a normal physiological response for the body to produce sweat when placed in a hot environment, undergoing physically strenuous activities or when nervous or stressed.

Hyperhidrosis refers to excessive sweating even in a cool and calm setting. It usually manifests in the underarms, hands, and feet.
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How does Botox help with Excessive Underarm Sweating?

Sweat is produced by sweat glands when a neurotransmitter called acetylcholine reaches and activates the sweat glands.

In patients with hyperhidrosis, there could be an overproduction of acetylcholine which results in overstimulation of the sweat glands and hence excessive sweat secretion.

Botox injections into the underarms help to stop the release of acetylcholine which reduces sweat gland activity and ultimately results in lesser sweat production.
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Treatment options for Excessive Underarm Sweating

Antiperspirants work by obstructing the sweat glands so that sweat is unable to be secreted. When the sweat glands are blocked, there is a feedback mechanism to the body to reduce further production of sweat.

However, antiperspirants can sometimes cause side effects such as rashes or skin irritation.

Compared to Botox, antiperspirants are an affordable option. However, daily compliance is required for it to be effective.
Oral Medications
Anticholinergic drugs such as oxybutynin work by preventing the sweat glands from working. It can work well when combined with topical antiperspirants.

However, side effects may include dry mouth, dry eyes, blurring of vision, and abnormal heart rhythm. Furthermore, in people who stay in a hot climate, a reduction in sweating may impair the body’s ability to cool itself, thereby increasing one’s risk of heat stroke or heat injury.
Iontophoresis (No sweat Machine)
It is a home-based treatment that is only applicable to excessive sweating for the hands or feet. Unfortunately, it does not work well for the underarms.
Excision or laser removal of the sweat glands can be done as a day surgery treatment under anesthesia.

Side effects include infection, loss of sensation in the underarms, and scarring.
Hand-held medical devices that destroy sweat glands
Specific to the underarms, FDA has approved hand held medical devices that emit electromagnetic energy that can destroy the sweat glands.

However, this is a relatively new treatment option and more studies have to be done on its safety and efficacy.

What are the advantages of Botox compared to other treatment options?

Botox for underarm hyperhidrosis is a quick, safe, and effective treatment with minimal discomfort. Each treatment session takes between 15 to 20 minutes and results typically last 4 to 6 months.

Compared to the application of topical antiperspirants or oral medications, undergoing botox injections twice a year is a more convenient option with a lesser chance of skin irritation or rashes.

Botox is also far less invasive than surgery with a lower risk of side effects. Botox for hyperhidrosis has minimal to no downtime whilst surgery usually requires 1 to 2 weeks for the wound to recover and heal.


Botox is a well-studied treatment for excessive underarm sweating and is recommended for those who prefer to undergo treatment twice a year as compared to the daily cream application or oral medications.

Newer treatments for hyperhidrosis are on the horizon which makes this an exciting space!

Frequently Asked Questions

How many units of Botox is required for the Botox Brow Lift?
On average, around 10 to 18 units of botox is required, depending on the strength of the depressor muscles.
How long do Botox brow lift results last?
Typically, Botox brow lift results last around 3 to 6 months, depending on dosage of Botox injected.
What is the recovery from brow botox lift like ?
Downtime (recovery period) from botox brow lift is minimal and if there is any bruising or swelling after the treatment, it will typically be resolved by itself in a couple of days. The recovery cream can help to speed up the improvement of bruises and swelling
Are there any marks left for botox for brow lift ?
After botox there may be slight swelling and bruising but these are temporary and will typically resolve after 3 to 7 days
Can Brow botox lift the upper eyelids ?
Brow botox lift is only able to lift the brows and not the eyelids.

Botox Treatment?

For more information, please call +65 6904 2218 or WhatsApp at +65 9637 2218 or contact us.
One of our experts will answer all your questions.

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East clinic at #02-12/13 Changi City Point Shopping Mall
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Orchard clinic at #05-51 Lucky Plaza, Orchard Medical Specialists Centre

Telephone | +65 69042218
Whatsapp | +65 96372218

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Saturday. | 11am to 6pm
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