✅ What it is

• The treatment addresses axillary hyperhidrosis, a condition of excessive under-arm sweating, by injecting a neuromodulator (botulinum toxin type A) into the sweat-gland-rich area under the arms.
• The neuromodulator blocks nerve signals to the sweat glands, significantly reducing sweat production in the treated zone.
• In Seoul, this is a well-established dermatology/cosmetic-clinic treatment option for patients frustrated by under-arm sweat, odor, or wetness in social/professional settings.

⚙️ How the procedure typically works & what to expect

• Consultation: A dermatologist assesses how severe your under-arm sweating is (daytime, night, with heat/exercise), examines the area, discusses your goals (e.g., “stay dry in meetings”, “no under-arm stains”).
• Injection session: After marking the injection sites under both arms, small injections are administered. The session takes about 10–30 minutes depending on extent and whether both arms are treated.
• Onset of effect: You may notice reduction in sweating within a few days to a week; full effect typically seen in 1–2 weeks.
• Duration: Results commonly last 4 to 6 months, though individual variation exists. Many clinics in Seoul report this as the usual range.
• Recovery / downtime: Minimal. You may have slight discomfort, redness or bruising under arms. You can return to most normal activities, though you might be advised to avoid excessive heat/sauna/exercise for a short period.

💰 Typical cost range in Seoul

• Depending on the clinic, brand of neuromodulator, dose and whether it's one or both arms, the price range for under-arm Botox in Seoul is roughly ₩ 250,000 to ₩ 600,000 KRW per treatment for the axillae.
• Some clinics list under-arm sweating treatment from around ₩ 110,000 KRW and up, depending on brand and promo offers.
• Because the treatment involves more units (compared to small facial areas) and addresses a functional rather than only cosmetic issue, the cost is higher than standard wrinkle-Botox zones.

🧐 What to ask / check before you proceed

• Which brand of neuromodulator will be used (imported vs domestic), and whether the clinic uses authentic/approved product.
• How many units or injection sites will be used for your under-arms, and how the dose is determined (based on your sweat severity, body size, previous treatments).
• The practitioner's experience treating axillary hyperhidrosis (since injection depth/placement is important).
• What your realistic outcome will be (how much sweat reduction, timeline, when you might see results) and what happens if sweating continues.
• After-care instructions: For example, whether to avoid heavy exercise/sauna/hot baths for X hours, whether you should avoid antiperspirants or deodorants immediately.
• Maintenance plan: How long the effect is expected in your case, when a repeat treatment might be suggested, and what the cost will be.
• Full cost breakdown: Does the quoted price include consultation, the product, follow-up visits? Are there any extra fees for foreigners, translators, or special brand upsells?

📋 Smart tips & after-treatment care

• After injection: You may be advised to avoid heavy sweating, sauna, hot yoga or intense exercise for the first 24-48 hours to allow the neuromodulator to settle.
• Use of strong antiperspirant might still be allowed unless your doctor advises otherwise; discuss with your clinician.
• If you have a habit of heavy arm movement or your under-arms sweat especially with exercise, discuss the timing of your treatment around your workout schedule.
• Monitor your results: if sweating reduction is less than expected after the usual timeframe (1-2 weeks), ask your doctor about follow-up or touch-up options.
• Keep track of what brand/dose you used so that future treatments can be consistent.
• Maintain good hygiene, wear breathable fabrics, and adopt lifestyle measures (e.g., avoid excessive heat/covering) to support the result.