Iontophoresis: Contraindications, side effects, safety instructions


With­out explic­it med­ical approval and super­vi­sion, ion­tophore­sis should nev­er be used on patients:

  • with a pace­mak­er
  • with an ICD ( implantable car­diovert­er-defib­ril­la­tor)
  • who are preg­nant
  • who have an IUD con­tain­ing met­al
  • with met­al implants near the region where the cur­rent is to be applied
  • with major skin defects/wounds that can­not be cov­ered with Vase­line
  • with strong­ly lim­it­ed sen­si­tiv­i­ty in the area of cur­rent flow (e.g. polyneu­ropa­thy)
  • with major wounds, acute local infec­tions, rash, swelling, or local inflam­ma­tion
  • Do NOT apply the elec­tric cur­rent direct­ly to the chest, the brain, or the sinus cav­i­ties!
  • with sus­pect­ed or diag­nosed heart dis­ease or epilep­sy.

Side effects

The fol­low­ing side effects may be expe­ri­enced in the areas treat­ed for a short time after treat­ment:

  • mild dyses­the­sia (sen­so­ry dis­tur­bance), such as tin­gling or burn­ing sen­sa­tion
  • short-term skin irri­ta­tion (red­ness) after treat­ment
  • ery­the­ma (red­ness, short-term vesi­cles or blis­ters)
  • slight burns due to pro­longed, direct con­tact with the elec­trode


  • The treat­ment device may only be oper­at­ed with the HIDREX pow­er adapter designed specif­i­cal­ly for this med­ical device (HIDREX type plate with device num­ber cor­re­spond­ing to the con­trol device).
  • The treat­ment elec­trodes must always be cov­ered by the sup­plied tow­els, oth­er­wise burns may occur. Avoid direct con­tact with the met­al!
  • Two devices should not be used on one patient at a time.
  • Before treat­ment, remove metal­lic jew­ellery (rings, etc.) that would be in the water bath dur­ing treat­ment; oth­er­wise, slight burns may occur.

Important safety instructions

  • Place the treat­ment device on a firm, flat sur­face.
  • Make sure that the device is at room tem­per­a­ture when switched on.
  • Although it is safe to remove your hands or feet from the treat­ment water at any time, you should first reduce the volt­age to zero. In very rare cas­es, unpleas­ant elec­tric shocks1 could occur.
  • The device must not be used near short­wave or microwave treat­ment devices. The min­i­mum dis­tance should be 2 metres.
  • When plugged in, check that your pow­er sup­ply has the required 110–230 V~ at 50–60 Hz.
  • Dis­con­nect the AC adapter from the wall out­let when a thun­der­storm approach­es. Do not use the treat­ment device for extend­ed peri­ods.
  • Only use this device indoors. Do not expose it to rain or exces­sive mois­ture.
  • Before clean­ing, switch off the device and dis­con­nect all plugs. Use a soft, damp cloth and a mild clean­ing solu­tion to clean the device.
  • Do not use petro­le­um, thin­ner, alco­hol, wax remover, or oth­er sol­vents.
  • Do not bend the cables exces­sive­ly and do not expose the cables to heat or chem­i­cals. If a cable is dam­aged, remove it from the device and have it checked by Hidrex GmbH.
  • Do not open the device. This treat­ment device has no parts inside that you can adjust. All ser­vice work must only be car­ried out by Hidrex GmbH.
  • Wash the sup­plied tow­els reg­u­lar­ly with your house­hold linen (note the care instruc­tions on the tag).
1These shocks are uncom­fort­able but absolute­ly harm­less.

Further information on hyperhidrosis treatment with HIDREX iontophoresis: