Introduction To Hyperhidrosis (Excess Sweating)

Hyperhidrosis is excessive sweating secondary to overactive sweat glands. It primarily occurs in the axilla (underarms), palms of the hands and soles of the feet but can also affect the whole body. In affected individuals increased sweating occurs without the normal stimuli such as exercise, anxiety or rise in body temperature and occurs in abnormally high amounts throughout the day. 

Hyperhidrosis can be caused by a number of medical conditions including thyroid disease, medications, diabetes, infections and menopause. 

hyperhydrosis treatment by dr kate

It is important to exclude an underlying cause for hyperhidrosis prior to embarking on any treatment regime; the doctors at Youth Lab are trained in the assessment and treatment of this condition and will determine the need for further investigation on an individual basis. 

However primary hyperhidrosis for which there is no underlying medical cause affects a significant number of the population. It is a result of an overactive sympathetic nervous system. This condition is embarrassing, uncomfortable and socially limiting to those who are affected. Primary hyperhidrosis can be effectively treated in a number of ways with the injection of muscle relaxants being a low risk, effective and non-surgical option. 

The use of muscle relaxing injections (which are the same as those used for anti-wrinkle injections), actually work to block the excretion of sweat from the sweat glands and hence relieve the distress of hyperhidrosis. 

frequently asked questions


A thorough consultation with our doctors is required prior to treatment as on some occasions further investigation into the underlying cause of the excess sweating may be required.

Prior to performing treatment the area is covered with iodine and a cornstarch powder which shows up the exact area where the excess sweat glands are located. This area is then marked and cleaned and a topical numbing cream is applied. The use of the anaesthetic cream results in a virtually painless procedure.

The treatment involves the injection of small amounts of muscle relaxant to the affected site, usually 15-20 injections, with the entire procedure taking approximately 30 to 45 minutes.


Depending on the individual response to the injections, the treatment may last anywhere between 6 to 12 months.

You will start to notice a reduction in sweating within two weeks of treatment with the maximal result after about 4 weeks. Repeated treatments may be necessary for optimal results.


There is no associated downtime and people can return to their normal activities after the treatment. It is advised to avoid any strenuous or heat inducing activities immediately after and to avoid the use of topical antiperspirant products for 24 hours. There should be no pain but ice can be applied to reduce discomfort, swelling and bruising if this occurs.


Side effects are minimal and may include mild pain or stinging during and after the procedure. Some people may feel a subjective increase in sweating from other areas in the first few days following treatment.

Treatment with muscle relaxant injections for hyperhidrosis is not a suitable treatment for those with particular allergies, neuromuscular disorders and pregnant/breastfeeding women.


Cosmetic Doctors

To view our up to date pricing with our Cosmetic Doctors, please visit our Medical Treatment Doctor Pricing page and look up under the Anti-Wrinkle Injections section.

Cosmetic Registered Nurses

To view our up to date pricing with our Cosmetic Registered Nurses, please visit our Medical Treatment Nurse Pricing page and look up under the Anti-Wrinkle Injections section.