Hyperhidrosis is the medical term for excessive sweating and can be due to a variety of causes. The most common cause is that it's simply a genetic predisposition. Other less common causes can be hyperthyroidism, diabetes, or neurological disorders such as Parkinson’s disease.

Small amounts of Botulinum Toxin are injected under the arms, blocking nerve signals to the eccrine glands and preventing sweat production.

Normally the patient will notice a significant difference in around 7 days after the procedure, although results vary from patient to patient.

A topical anaesthetic is applied to enhance comfort during the treatment. The needle used is very fine, and only a small amount of the substance is injected, so pain is minimal. No sedation or local anaesthetic is required.

The effects of the injections typically last between 6 and 12 months. As soon as you notice a return to excessive sweating, you can come back for additional treatment.

Before the treatment for Hyperhidrosis it is recommended that patients remove all hair from the armpits and wear a dark coloured loose fitting top. You will need to expose the area for treatment so a vest or sleeveless top is recommended. Deodorant can be worn to the appointment but will be removed by your doctor prior to Botox injections.

After your treatment for Hyperhidrosis the patient should avoid tight fitting tops on the area. The patient should avoid applying deodorant for up to 12 hours following the procedure. The patient should also avoid having hot baths or showers for 12 hours after treatment.