Since 1978, Dr. Benohanian has been treating hyperhidrosis with an extemporaneous formulation consisting of topical aluminum chloride in a salicylic acid gel. This formulation prevented many hyperhidrosis victims from getting surgery. The gel is now available without prescription in all pharmacies across Canada under the name : Hydrosal® Gel.

Dr. Benohanian uses Botulinum Toxin type A with  injections when topical treatments fail to control focal hyperhidrosis (excessive sweating of axillary, inguinal, craniofacial, palmar and plantar regions). Botox injections on the armpits, groins and craniofacial areas are usually well tolerated with little or no anesthesia.

For palmar and plantar hyperhidrosis, the procedure is much more complex necessitating regional or general anesthesia because of the densely innervated skin in those areas. Because of that, many physicians are reluctant to treat palmar and plantar hyperhidrosis.

Dr.Benohanian has elaborated a new technique to treat palmar and plantar hyperhidrosis which involves painless needle-free anesthesia, in tiny amounts (0.02 to 0.04 mL), prior to Botox injection with needle. Needle free anesthesia is accomplished through a device, specially tailored for that purpose: the MED-JET manufactured by MIT Canada , a subsidiary of Medical International Technology USA).


The information regarding excessive sweating has been updated at a new site www.hyperhidrosis.ca  which I invite you to visit.


« JET INJECTION » is a needle-free drug delivery method which reduces the pain and apprehension caused by needles. The device used is the Med-Jet MBX which offers an adjustable volume and pressure tailored to the patient’s need, it is particularly useful for the needlephobic. 

Lidocaine, triamcinolone and many other substances could be injected with this method. Small skin lesions, like acrochordons (skin tags) and nevi (moles) could be easily excised by injecting needle free lidocaine prior to their removal. Likewise, triamcinolone could be injected almost painlessly in such diseases as granuloma annulare, nail psoriasis, keloids etc.
Botox could also be injected directly into the dermis in this way but it could partially lose its potency due to its exposure to agitation during the injection process. Therefore, needleless subepidermal lidocaine anesthesia is preferred prior to Botox injection with needle.

Conflict of interest
Antranik Benohanian MD is the owner of the following websites: www.benohanian.com, www.hyperhidrosis.ca & www.hyperhidrose.ca .  Dr. Benohanian has received financial compensation from the following companies: Allergan and Valeopharma for talks given on hyperhidrosis. The information provided on this website is designed to support, not  replace, the relationship that exists between a patient/site visitor and his/her dermatologist or treating physician.

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