I purchased Drionic in 2004 and used it for four weeks almost every day to see if it helped my feet sweating that had significantly worsened since my ETS surgery in 1998 to cure excessive hand sweating. My first impression of the Drionic machine was that it is quite a crude looking badly designed piece of equipment. It was somewhat uncomfortable to place my feet in the device and keep them there for the duration of the treatment.
Drionic did not help me at all during the four weeks I used it. After those four weeks of use, the device's somewhat expensive proprietary batteries became dead and I converted the machine to accept regular low cost AA batteries via soldering new connections (for conversion to electricity, scroll down this page to get to the link to Carolyn's detailed instructions on doing so). However, the machine still did not prove to be effective, and an electrical engineer friend told me that even if the AA batteries had the same voltage as the proprietary batteries, the resulting current could be different! At this point I gave up and just wear socks when I am home unless I feel there is no feet sweating episode about to begin. Usually I can predict to an extent the days or hours when I know the feet won't sweat. I have never figured out why there are days when the feet are completely dry and days when they are like a waterfall even during the same season.
EDIT: In May 2009, I finally got rid of my excess feet sweating using the HIDREX iontophoresis machine. This machine is far superior to Drionic in every way, and utilizes pulsed current (a type of direct current). You must try it before getting surgery. In February 2010, I also attained a successful outcome using the snazzy looking Idromed iontophoresis machine.
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Now the funny part. I got held up at Heathrow Airport in England because the customs guy thought that the Drionic (which I being the genius I am, carried in my hand luggage) was surely a bomb. He made me dismantle the whole device from the back and three customs officers gathered around and couldn't believe that this electric machine was for hand or feet sweating problems. I am sure it does sound ludicrous to people who don't know about this kind of thing. I recommend not packing your Drionic or other iontophoresis device in your carry-on luggage when traveling.
Drionic has worked for many people and it is a mistake to give up on it. Some of the people for whom it works still decide to get the ETS surgery (thinking that it is a faster and permanent fix with no side effects) instead and they then often regret having it. Once Drionic starts working, maintenance treatments are usually just needed once a week, and this is much better than killing sympathetic innervation to the whole upper body via ETS. Treatments should be performed at as high a setting as is tolerable.
The link below is an archive of Carolyn Lamoureux's old website on geocities. It is a great place to see how to convert Drionic to electricity. Carolyn has over the year's helped numerous people to not give up and be persistent with their Drionic treatment and experiment with different add-ons and variations. Carolyn herself had great success with Drionic and decided not to get ETS surgery because of that.
Archive of Carolyn 's excellent Drionic modification website
The proprietary batteries sold on Drionic.com are too expensive and run out quickly. Besides converting to electricity, another option is to try and convert the machine to accept normal AA batteries that can be purchased at any store (I did this myself and it can be seen in one of the pictures on this page. Be sure to solder properly if you do it that way).
People recommend all kinds of stuff when using Drionic to get better results...from adding lime juice and/or alcohol and/or salt to the water, to using hot/warm water instead of cold water, to adding Dehydral or Robinul or even tea leaves in the baths. Check out the Drionic Forum on this site to read about other people's experiences with Drionic. If you try it out, please post your results on the forums in order to help others like yourself.