Botox for Sweating & Hyperhidrosis in Newport Beach
Excessive sweating is not a hygiene problem. It is a medical one — driven by overactive sweat glands that respond disproportionately to temperature, stress, or no trigger at all. Botulinum toxin is one of the most effective treatments available, with results that typically last 6 to 12 months.
Botox for sweating works by blocking the nerve signals that activate sweat glands in the treated area. Unlike antiperspirants, which work on the skin surface, botulinum toxin acts at the nerve-gland junction — significantly reducing or eliminating sweating in the treated area for months at a time.
At Plump Medical Spa in Newport Beach, Dr. Amir Mortazavi, MD treats excessive sweating in the underarms, palms, feet, scalp, and forehead. The approach and dosing are individualized based on the area being treated and the severity of the patient’s concern — whether that is a formal hyperhidrosis diagnosis or simply sweating that has become disruptive to daily life.
You do not need a formal hyperhidrosis diagnosis to be treated. Many patients who seek this treatment have never been diagnosed — they simply sweat more than they want to, in ways that affect clothing choices, confidence, or comfort. Both presentations are appropriate for treatment at Plump.
Treatment areas
Botulinum toxin can reduce sweating in several areas of the body. Each requires a different injection technique, dose, and approach. Dr. Mortazavi treats all of the following.
Underarms (axillary hyperhidrosis)
The most commonly treated area. Botulinum toxin is injected in a grid pattern across the axillary vault, targeting the eccrine sweat glands beneath the skin. Results are typically dramatic — most patients experience 80 to 90 percent reduction in underarm sweating. Duration is 6 to 12 months, significantly longer than facial neurotoxin treatments.
Palms (palmar hyperhidrosis)
Sweaty palms are one of the most socially disruptive presentations of hyperhidrosis — affecting handshakes, grip, keyboard use, and daily tasks. Botulinum toxin injected across the palm significantly reduces sweating. The palms are a more sensitive treatment area and topical numbing or nerve block options are available to manage discomfort.
Feet (plantar hyperhidrosis)
Sweaty feet contribute to foot odor, skin breakdown, and difficulty wearing certain footwear. Botulinum toxin injected across the plantar surface of the foot reduces gland activity and sweating. Like palmar treatment, the feet are a sensitive area and numbing is available.
Scalp & forehead Often overlooked
Scalp and forehead sweating is one of the most underdiagnosed and undertreated presentations of hyperhidrosis — and one of the most disruptive, affecting hair styling, makeup, and confidence in warm or stressful environments. Botulinum toxin injected across the scalp and forehead can meaningfully reduce sweating in these areas. This is a treatment most practices do not offer, and patients who have struggled with scalp sweating are often unaware that a non-surgical option exists.
Who is a good candidate?
Diagnosed excessive sweating
Patients with a formal or self-identified hyperhidrosis diagnosis who sweat excessively regardless of temperature or activity. Botulinum toxin is FDA-approved for axillary hyperhidrosis and is widely used off-label for palms, feet, scalp, and forehead with strong clinical evidence.
Situational or lifestyle sweating
Patients who do not have a clinical diagnosis but find sweating disruptive — affecting clothing choices, professional situations, athletic performance, or confidence. No diagnosis is required. If sweating is affecting your quality of life, treatment is appropriate.
What to expect
Consultation
Dr. Mortazavi reviews the areas of concern, severity of sweating, and any prior treatments before recommending a plan. For patients treating multiple areas, sequencing and dosing for each is discussed individually. Treatment can often begin at the same appointment.
Treatment
Underarm treatment involves a grid of small injections across the axillary vault — most patients find it very tolerable with no numbing required. Palm and foot treatment involves injections across the plantar and palmar surfaces — topical numbing or nerve block is available for these more sensitive areas. Scalp and forehead treatment is similar to facial neurotoxin in terms of comfort and technique.
Onset and duration
Sweating reduction typically begins within 2 to 5 days and reaches full effect at 2 weeks. Duration varies by area. Underarm treatment typically lasts 6 to 12 months — significantly longer than facial neurotoxin. Palms and feet last 4 to 6 months. Scalp and forehead typically 3 to 6 months.
Aftercare
No significant downtime for any area. Avoid strenuous exercise and heat exposure for 24 hours after underarm treatment. Palms and feet may be mildly tender for 1 to 2 days. Normal activity resumes immediately for scalp and forehead treatment.
Palms, feet, scalp, and forehead priced at consultation based on area and dose. By appointment only.
View Pricing & Book →Most practices offering Botox for sweating treat underarms only. Dr. Mortazavi treats all areas where excessive sweating occurs — including the scalp and forehead, which are among the most disruptive and least treated presentations. All injections are performed personally. No nurses or assistants at Plump.
Frequently asked questions
How does Botox stop sweating?
Botulinum toxin blocks the release of acetylcholine — the neurotransmitter that signals sweat glands to activate. When injected into the skin overlying sweat glands, it prevents the nerve signal from reaching the gland, significantly reducing or eliminating sweating in the treated area. The effect is temporary and wears off as nerve signaling gradually recovers.
Is Botox for sweating FDA-approved?
Yes — for axillary (underarm) hyperhidrosis specifically. Use for palms, feet, scalp, and forehead is off-label but clinically well-established and widely practiced. Dr. Mortazavi will discuss the evidence and what to expect for each area at consultation.
Can you treat scalp and forehead sweating?
Yes. Scalp and forehead hyperhidrosis is one of the most underdiagnosed presentations of excessive sweating — and one of the most disruptive, affecting hair styling, makeup longevity, and confidence in warm environments. Botulinum toxin injected across the scalp and forehead meaningfully reduces sweating in these areas. Most practices do not offer this treatment, so patients often do not know a non-surgical option exists.
How long does Botox for sweating last?
Duration varies by area. Underarm treatment typically lasts 6 to 12 months — much longer than facial neurotoxin. Palm and foot treatment lasts 4 to 6 months. Scalp and forehead sweating treatment typically lasts 3 to 6 months. Individual results vary based on sweat gland density and the severity of the original concern.
Is the treatment painful?
Underarm treatment is well tolerated by most patients without numbing. Palm and foot treatment involves a more sensitive area — topical numbing or nerve block is available and recommended for most patients treating these areas. Scalp and forehead treatment is similar in discomfort to standard facial neurotoxin — most patients find it very manageable.
Will this affect sweating in other parts of my body?
The treatment is localized to the injected area. Reducing sweating in one area does not cause compensatory sweating to increase elsewhere — this is a common concern but is not a clinically documented effect of focal botulinum toxin treatment for hyperhidrosis.
How much does Botox for sweating cost at Plump?
Underarm treatment is priced for both sides. Pricing for palms, feet, scalp, and forehead is determined at consultation based on the area and dose required. Current pricing is available on the treatment menu, and Dr. Mortazavi will provide a clear cost estimate before any treatment proceeds.
Schedule a consultation
Botox for excessive sweating and hyperhidrosis is available at Plump Medical Spa in Newport Beach, serving patients throughout Orange County and Southern California.
4667 MacArthur Blvd, Suite 310 — Newport Beach, CA 92660
(949) 568-7544 — info@plumpmedicalspa.com
Tuesday – Saturday, 10am – 6pm — By Appointment Only