Botox for Excessive Sweating in Gangnam, Seoul
Hyperhidrosis Botox is a treatment for excessive sweating in which botulinum toxin is injected into the skin, usually of the underarms, to temporarily block the nerves that activate sweat glands. At The Heal Dermatology Sinsa Main Branch in Gangnam, Seoul, a board-certified dermatologist maps the sweating area and performs the quick injections with minimal downtime.
Written by The Heal Dermatology medical content team · Pending review by a board-certified dermatologist · Updated October 2026
How it works
Hyperhidrosis Botox treats excessive sweating by injecting small amounts of botulinum toxin into the skin of the affected area, most commonly the underarms. The toxin temporarily blocks the nerve signals that activate sweat glands, so the treated area produces much less sweat. It does not remove sweat glands, and normal sweating elsewhere on the body continues to cool you.
Who it's for
It is typically considered for adults with primary focal hyperhidrosis, where sweating of the underarms, palms or feet is heavier than needed and interferes with daily life, clothing, or confidence. If sweating is new, generalised, or comes with night sweats, weight loss or fever, a medical cause should be checked first. See excessive sweating.
What to expect at The Heal Sinsa
At The Heal Dermatology Sinsa Main Branch, near Sinsa Station and Garosu-gil in Gangnam, your consultation and treatment are carried out 1:1 by a Korean board-certified dermatologist. The dermatologist reviews your sweating pattern and history, may perform a simple starch-iodine test to outline active areas, and discusses alternatives such as prescription antiperspirants. We aim for honest recommendations without overselling, use genuine full-dose products, and treat in private single rooms. English and Traditional Chinese support is available on request. Pricing is confirmed after consultation; see pricing and payment.
Sessions & downtime
- Procedure time: typically 15–30 minutes for both underarms
- Technique: many small, shallow injections in a grid pattern
- Onset: sweating usually reduces within a few days to two weeks
- Duration: commonly around 4–9 months for underarms, varying by person
- Downtime: minimal; return to normal activities the same day
- Aftercare: avoid heavy exercise, saunas and hot baths for about 24 hours
Risks & who should avoid
Common side effects include mild pain, small bruises and temporary tenderness. Some people notice slightly more sweating in untreated areas. Palm treatment can be more uncomfortable and may cause temporary grip weakness. It is generally avoided in pregnancy or breastfeeding, active skin infection, neuromuscular disorders, and known allergy to botulinum toxin. Share your medication list, including blood thinners.
Planning around your trip to Seoul
Underarm treatment is quick, so it fits easily into a short visit. Allow a few days for sweating to settle before judging results, and avoid the jjimjilbang on the day of treatment; see sauna after treatment. See international patients and getting here for practical details.
Related
Frequently asked questions
How long does Botox for sweating last?
For underarms, reduced sweating commonly lasts around four to nine months, although this varies between people. Many patients repeat treatment when sweating gradually returns. Palms and feet may respond differently and are assessed individually by the dermatologist.
Is it safe to stop underarm sweating?
The underarms make up a small share of the body's sweat glands, so the body continues to cool itself normally through other areas. Some people notice slightly more sweating elsewhere. The effect is temporary and sweat glands recover over time.
Does the injection hurt?
Underarm injections use very fine needles and most people describe brief stinging. Ice or numbing cream may be used for comfort. Palm injections are more sensitive, and the dermatologist will discuss comfort options before treatment.
Treated by Korean board-certified dermatologists
At The Heal Dermatology, every consultation and procedure is performed or directly supervised by a dermatology specialist (피부과 전문의). Why board certification matters · Meet our doctors · International patient guide · All treatments
Branches: Sinsa (Main) · Jamsil · Dongdaemun · Mapo-Gongdeok
This page is general medical information and does not replace an in-person consultation. Suitability, number of sessions and results vary by individual.