Excessive sweating — known medically as hyperhidrosis — is a condition that affects far more people than many realise, and its impact on daily life, confidence, and wellbeing can be profound. At Eye and Face Clinic, Consultant Surgeon Dr Janice Brady offers botulinum toxin injections for the treatment of hyperhidrosis — a clinically proven, FDA-approved solution that can dramatically reduce excessive sweating and help restore confidence and comfort to everyday life.
Smooths facial lines by relaxing targeted muscles
Frown lines, forehead lines, crow’s feet, and early signs of ageing
Frown lines, forehead lines, crow’s feet, and early signs of ageing
Fine needles, with numbing cream or ice packs available
Visible from 3-5 days, peak at 10-14 days, lasting 3-4 months
Waterford clinic
Consultant Oculoplastic Surgeon
MB BCh BAO BMedSc MSc MRCOphth FRCSI(Ophth)
Botulinum toxin is highly effective for hyperhidrosis across a range of areas:
Underarms (axillary hyperhidrosis)
The most commonly treated area, and the one for which botulinum toxin has received FDA approval. The success rate for underarm treatment is over 95%. Within one month of the first treatment, patients can expect to experience an 80% reduction in excessive sweating.
Forehead and face (craniofacial hyperhidrosis)
Botulinum toxin works well on the head and face, with injections placed strategically on the forehead, temples, and upper lip to target the overactive sweat glands. This area requires particular skill and precision, making specialist administration essential.
Your treatment begins with a thorough consultation with Dr Brady, during which your symptoms will be assessed, your medical history reviewed, and a personalised treatment plan created for you.
The treatment itself involves a series of small, precise injections administered into the skin of the affected area using a very fine needle. A topical numbing cream can be applied beforehand to maximise comfort. The treatment itself takes around 10 to 30 minutes depending on the area being treated.
Results typically become evident within 2 to 4 days, with full effects usually visible by two weeks. The duration of effectiveness ranges from 4 to 12 months depending on the area treated, the individual patient, and lifestyle factors. Regular repeat treatments are recommended to maintain results, and many patients find that with repeated treatment, the intervals between sessions can become longer over time.
Hyperhidrosis treatment with botulinum toxin is minimally invasive with no significant downtime. Most patients return to their normal daily activities immediately after their appointment. The treatment area may feel mildly tender or sensitive for the first 12 to 24 hours following treatment, but this settles quickly. Some minor redness or small marks at the injection sites may be visible immediately after treatment but these resolve rapidly.
Botulinum toxin injections for hyperhidrosis are generally very well tolerated. Side effects are generally mild and localised, including temporary tenderness, minor swelling, or bruising at the injection site. Dr Brady will discuss all potential side effects with you in full during your consultation, including any considerations specific to the area being treated, and will answer any questions you may have.
Optimal results with botulinum toxin for hyperhidrosis depend on an experienced provider who tailors injection patterns and dosage to each patient — minimising risk and maximising effectiveness, especially in sensitive areas like the face and hands.
As a Consultant Surgeon with specialist expertise in facial and body anatomy, Dr Brady brings precision and clinical judgement to every treatment, understanding the real impact hyperhidrosis has on confidence and quality of life.
At Eye and Face Clinic, patient safety and satisfaction come first.
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No rush, no pressure – just honest medical advice.
Hyperhidrosis is a recognised medical condition — not something you simply have to put up with. Botulinum toxin injections offer a safe, proven, and highly effective way to take back control, and the results can be genuinely life-changing.
