getting started with

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Congrats on taking the first step towards dryness with The Fischer iontophoresis device! Here you'll find a thorough overview on how to use the device to treat hyperhidrosis.


the fischer


the fischer


the fischer


the fischer




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the fischer

Treatment FAQs

Turn on the device by flipping the main power switch, located on the back panel of the main control unit. The display now shows all treatment settings, represented by the symbols on the left.

  1. The first line is your Timer.
    We recommend setting this for 20 minutes.
  2. The second line is your Intensity level
    This varies from person to person. We suggest starting at a level 6 and adjust from there to your comfort needs.
  3. The third line is Current Type
    We encourage patients to treat with Direct Current, which is a represented by a solid line.
    You can read more about Pulsed Current vs. Direct Current in the FAQ below.
  4. The fourth line is Direction of Current Flow [E1/E2].
    We recommend that patients always keep this setting on Auto. By keeping it on Auto, the polarity changes direction automatically halfway through the treatment. Both areas being treated receive equal distribution of the positive side, which is known to have a stronger therapeutic effect.

Confirm the settings are correct by pushing the SET button.


Place your hands/feet into the water bath trays (if you’re treating your underarms, place the wet axillary electrodes under your arms). Then, you’ll hear a short “beep” that indicates you’ve completed the circuit and treatment has begun.


The Active Treatment Display (ATD) will flash and the treatment timer will start to count down.

You can think about Direct Current vs. Pulsed Current like this:

Imagine you’re driving on a highway. With direct current, it’s like maintaining a steady speed of 65 mph throughout your journey. It’s smooth, consistent, and efficient. On the other hand, pulsed current is like constantly accelerating and decelerating. You might go from 0 to 100 mph and then back to 0 before finally reaching 65 mph, repeating this cycle multiple times along the highway. This constant variation in speed can be less efficient and more erratic.


Direct Current is an electric current that is one-directional, meaning the flow of the charge is always in the same direction. Positive to positive, negative to negative. With direct current, there is a continuous flow of charged particles lasting at least 1 second.


Pulsed Current is also one-directional, but the intensity changes in value over the course of treatment. It’s perceived as being more comfortable because users can tolerate higher current values. With pulsed current, the flow of charged particles stops for less than 1 second in between cycles.


Pulsed current iontophoresis is not as effective as direct current because patients only receive a small portion of the treatment at the maximum value.

For the first three weeks, we recommend that you treat every other day for 20 minutes.

  • After the first three weeks and you have reached a level of dryness that you’re happy with, you can begin to treat less often. Move on to the next step. 

For the next two weeks, we recommend treating every three days

  • If your level of dryness has maintained at the end of this period, you can now consider this your Maintenance Phase. You only need to treat on an “as-needed basis. Most patients will only need to treat once every 3-6 weeks to stay dry.

Cover any small skin lesions or skin breaks with petroleum jelly (like Vaseline® brand) or a lanolin wax/cream (such as Lansinoh® brand) prior to your treatment.


This insulates the cuts from the current flow.

The Fischer is not intended for use while pregnant, but it is safe to use while breastfeeding. 

Use lukewarm water to make the treatment more comfortable and help keep your skin pores open.

Before cleaning and disinfecting, switch off The Fischer and unplug it. Clean the main control unit, water bath trays and electrodes with a damp cloth.

For hygienic reasons, clean foam inserts, sponge pad sleeves, and silicone- graphite electrodes after every treatment session under running water (max. 30° C, 86° F). To this end, remove the silicon electrodes from the sponge pads.

Afterwards, wring the sponge pads and foam inserts out and let them dry. Dry the silicone-graphite electrodes with a cloth.
If necessary, you can machine wash the sponge pad sleeves, foam inserts, and storage bag (max. 30° C, 86° F). A subsequent centrifuging or spinning is to be avoided by all means — items should be air-dried. Due to its textile structure, the sponge pads should only be washed if needed so as not to unnecessarily shorten its service life.

You can find the technical specifications here. 


for patients

Find forms and other resources to help you begin your iontophoresis journey here.
Screenshot for cover image of RA Fischer's Fischer iontophoresis instruction manual


View a digital version of the Fischer manual here.

Screenshot for cover image of RA Fischer's iontophoresis treatment journal

Iontophoresis Treatment Journal

View a digital version of a page of the treatment journal here.

Cover image of the insurance reimbursement guide for The Fischer by RA Fischer Co. Top reads "Insurance Reimbursement Guide," below is a black and white image of the Fischer, trays, electrodes, other accessories for the Fischer

Insurance Reimbursement Guide

See the Fischer Medical Supply Insurance Reimbursement Guide for guidance on seeking reimbursement from your insurance provider.

Screenshot for cover image of RA Fischer's Back-to-School letter

Back-to-School Letter

A letter for students to take to school that helps explains their symptoms to teachers and faculty.



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