Botox is FDA-approved specifically for severe underarm sweating (axillary hyperhidrosis), reducing sweat production by roughly 80–90% within days, with results typically lasting 4–6 months. If antiperspirants alone haven’t solved the problem, this is the next step worth knowing about before summer heat makes it worse.
What Is Hyperhidrosis, and Is It Different From Normal Sweating?
Hyperhidrosis is a medical condition causing excessive sweating well beyond what’s needed to regulate body temperature: Sweating that happens even at rest, in cool environments, or during low-stress moments. It’s a real, diagnosable condition, not simply “sweating a lot,” and it’s more common than most people realize.
The most frequently treated area is the underarms, though palms, soles, and the face can also be affected.
How Does Botox Actually Stop Sweating?
Botox blocks the release of acetylcholine, the chemical messenger that signals sweat glands to activate. Without that signal, the targeted glands simply stop producing sweat in that specific area. Your body continues to sweat and regulate temperature normally everywhere else.
- Onset: Noticeable reduction within 24–48 hours — faster than facial Botox, since sweat glands respond quickly to denervation
- Peak effect: 2–3 weeks
- Duration: Typically 3–4 months for underarms, with some patients experiencing longer-lasting results
- Approved use: Underarms (axillary hyperhidrosis) is the FDA-approved indication; palms, soles, and face are treated off-label by experienced injectors
What Does Treatment Actually Involve?
A grid of small, superficial injections is placed across the affected area—typically the underarms—to ensure even coverage of the sweat glands. The procedure itself usually takes 15–20 minutes, with no real downtime afterward.
Curious whether your sweating is something Botox can address? Book a complimentary consultation and Lucere’s injecting team will walk you through what to expect for your specific case.
Is This Different From Botox for Wrinkles?
The product is the same; the target and goal are different. Facial Botox relaxes muscles to soften expression lines. Hyperhidrosis Botox is injected more superficially, targeting sweat gland activity rather than muscle movement, which is also why areas like the forehead can be treated for sweating using a lower dose than what’s used cosmetically, without affecting brow movement.
Who Should Consider This Treatment?
Anyone whose sweating interferes with daily confidence, clothing choices, or comfort, particularly once over-the-counter and prescription antiperspirants haven’t provided enough relief. Patient satisfaction with this treatment runs notably high, since the result is immediate, predictable, and addresses a problem that’s hard to manage any other way.
FAQ: Botox for Sweating
Will treating my underarms make me sweat more somewhere else to compensate?
Some patients report mild compensatory sweating elsewhere, though it’s generally far less bothersome than the original concern and not universal.
Is this covered by insurance?
Because axillary hyperhidrosis is an FDA-approved medical indication for Botox, some insurance plans do provide partial coverage with appropriate documentation, worth checking with your provider in advance.
How many units does this typically require?
Underarm treatment generally uses around 50 units per side, though your injector will tailor this to your sweat gland density and severity during consultation.
Can I treat my hands or feet too?
Yes, off-label, though these areas can be more sensitive given the density of nerve endings. Your injector will discuss comfort measures during consultation.
Does this work for everyone with excessive sweating?
Most patients see meaningful improvement, though severity, treatment area, and individual response all play a role. A consultation will set realistic expectations for your specific case.
Done sweating through every summer outfit? Book your complimentary consultation at Lucere Dermatology & Laser Clinic or call 780-461-1188.