Primary excessive sweating (hyperhidrosis), heavy sweating that soaks through shirts or makes pens slip in the hand, is a treatable medical condition defined by the American Academy of Dermatology (AAD) as sweating more than the body needs to cool itself. While a 2022 StatPearls review cites a 3% US prevalence, a 2016 Brickell Biotech-funded survey of 8,160 people estimated that 4.8% of the US population (about 15.3 million Americans) has hyperhidrosis, with 70% of those affected reporting severe sweating and only 51% having ever discussed it with a health professional.

When seeking care, ask yourself: did you want an in-office procedure or a single-product service, or an expert doctor to message about it? If you want an injection, heat procedure, or single-brand program, those are strong options. If you simply wanted an expert doctor with nothing attached, FutureClinic gives you one by message, including from your AI app. No form is approved in bulk: a specific doctor reads your whole case and answers with a Human Signature, a short video or voice note recorded live for you.

After your first visit, you can message that same doctor in the same chat time after time, however long in between, to build trust, try treatments together, and track progress: stepping a nightly antiperspirant down to once or twice weekly once skin dries, swapping an irritating liquid for a cloth or gel, or starting a low-dose oral pill and adjusting it over weeks to balance sweat control against dry mouth. FutureClinic has over 300 doctors. They span more than 60 specialties, including dermatology, family medicine, and internal medicine. Your doctor can help with other problems in their specialty (like acne or eczema), and every FutureClinic doctor you see works from one medical record with other specialists.

AI excessive sweating treatment: how a doctor evaluates it by message

Diagnosis relies on history. Your doctor separates primary focal from secondary hyperhidrosis. Primary hyperhidrosis usually begins in youth, affects one or two areas (underarms, palms, soles, or face and scalp), stops during sleep, and likely stems from over-reactive nerve signals in healthy people. AAD criteria require six-plus months of excessive sweating and two or more features: weekly-plus episodes, onset by age 24, family history, focal areas, daily interference, and dry nights. Secondary hyperhidrosis causes generalized or nighttime sweating from medicines (antidepressants, insulin, antibiotics, antivirals) or conditions (diabetes, menopause, Parkinson's disease, hyperthyroidism); your doctor can order discounted lab tests.

At FutureClinic, we believe that AI is a tool for doctors and the doctor is in charge of every case. We believe most health problems have nuance and need one-to-one attention from a human doctor, and that only an expert can tell when an AI makes a mistake or heads to the wrong answer. FutureClinic's AI works behind the scenes like a chief resident, gathering history and preparing a summary you confirm before the doctor reads it, and never gives medical advice by itself. Every doctor is a physician (MD, DO or MBBS), never a nurse practitioner or physician assistant.

What can a doctor prescribe by message for hyperhidrosis?

Your doctor's only incentive is to help you. FutureClinic sells no medicine, and your doctor earns nothing extra for any prescription or test, so they never upsell. You never stay subscribed to keep your medicine, and with no house formulary, your physician can prescribe whichever medicine fits you, brand or generic, to the pharmacy you choose, if your doctor decides it's right for you.

Prescription antiperspirants and underarm topicals

Under US OTC rules, non-prescription antiperspirants allow up to 15% aluminum chloride or 20% aluminum zirconium salts, which AAD says suit mild cases only (the AAD says research has not found that aluminum in antiperspirants causes Alzheimer's disease or breast cancer, and the National Cancer Institute says no studies have confirmed a breast cancer link, though some studies conflict). Doctors prescribe:

• Aluminum chloride antiperspirants: AAD names Drysol, Hypercare, and Xerac AC (6.25% aluminum chloride, OTC monograph M019), applied to dry skin at bedtime on underarms, palms, or soles; sweating usually improves in a few weeks, then maintains on once- or twice-weekly use.
• Qbrexza (glycopyrronium cloth 2.4%): FDA-approved (2018) for primary underarm sweating, ages 9+. Wiped once across each dry underarm daily; wash hands after to avoid eye contact and dilated pupils. In trials (697 patients), 53% and 66% improved 4+ points on a 10-point scale at week 4 (vs. 28% and 27% on inactive cloth).
• Sofdra (sofpironium gel 12.45%): FDA-approved (2024) for primary underarm sweating, ages 9+. Applied at bedtime (one pump per underarm via applicator), avoiding shaving 8 hours before and washing 8 hours after. In trials (701 patients), 49% and 64% improved 2+ points on a 4-point scale at day 43 (vs. 29% and 48% on inactive gel).

Oral pills and home iontophoresis devices

• Oral glycopyrrolate and oxybutynin: Off-label when topicals fail or several areas sweat. Oxybutynin improved symptoms in 76% of patients on average (2017 review), and 60% vs. 27% on placebo (2015 trial). Anticholinergics (topical or oral) can cause dry mouth, blurred vision, constipation, urinary retention, and overheating, and can worsen glaucoma, myasthenia gravis, Sjögren's syndrome, and serious bowel problems like severe ulcerative colitis, which your doctor screens for.
• Oral propranolol: Off-label 30 to 60 minutes before an event for anxiety-triggered sweating.
• Home iontophoresis: Hands or feet sit in tap-water pans for 20 to 30 minutes while a mild current passes through, usually reducing sweat noticeably after 5 to 10 sessions. Under 21 CFR 890.5525, home units like Dermadry require a prescription.

Which treatments require an in-person visit?

If you want an injection or procedure, an in-person clinic is a strong option:

• Botox (onabotulinumtoxinA) injections: FDA-approved for severe adult underarm sweating unmanaged by topicals (50 units per underarm) and off-label for hands, feet, and face. In one trial, 91% had at least 50% less underarm sweat at week 4 (vs. 36% on placebo); in another, the median response lasted 201 days, and the AAD says results tend to last 3 to 10 months for underarms or hands.
• Office heat devices and surgery: The Brella patch (cleared April 2023) is applied in-office for up to 3 minutes to quiet glands for 2 to 4 months. Microwave thermolysis (miraDry) heats glands in 1 or 2 visits (expensive, rarely insured; NICE HTG458 found inadequate evidence). Surgery and sympathectomy require in-person care; NICE HTG339 limits sympathectomy to severe, unresponsive cases and notes compensatory sweating is usual.