Excessive Sweating-Hyperhidrosis

Under Arm Hyperhidrosis / Excessive Sweating: Dr. Mark Hamilton specializes in the injection treatment of excessive underarm sweating. The injection dosage used for each patient is variable and based on the desired effect and the strength of the muscles being injected.

This information page is intended to give honest and clear advice and does not promote a prescription product.

In order to help educate our readers about are their options when considering a non-surgical procedure, we’ve put together this information to explain what goes into bringing you a treatment you can trust.

Hyperhidrosis Dublin


Routinely at least 50 units of toxin are administered to each underarm. Individual results may vary and some patients may need a stronger dose. Using less than 50 units per underarm will result in a relief of your symptoms for only a few months.

For a very severe case of hyperhidrosis a higher dose is required.

You will need a consultation with Dr. Hamilton and he will advise you with regards to your suitability and possible outcome of your treatment.


The cost of the procedure is based on the dosage required to successfully treat the severity of the sweating. Dr. Hamilton is highly experienced in this procedure and knows a bespoke dose of toxin is needed to get a result that each patient is happy and confident with.


Wear a sleeveless T- shirt and bring a loose sweat shirt or hoodie with you. No need not wear deodorant so Dr. Mark can assess the level of your sweating.

For patienbts who are sensitive to needles, a triple anaesthetic prescription numbing cream is applied to the injection sites for 30 minutes before injecting.


The treatment take two weeks to take effect and should routinely last 4-6 months.

Patients are reviewed 2-3 weeks after their procedure when Dr. Mark can then access your results.

To book a consultation  email drmark@hamiltonfaceclinic.com.