Does it work?
After one cycle of treatment, up to 85% of people with symptoms in the hands and feet will find relief. It is slightly less successful in the treatment of underarm sweating but there is up to a 70% success rate. As success is related to the direct effect of the electrical current on the skin, iontophoresis works best when higher currents are used, or the treatment is carried out for longer.
Iontophoresis is generally considered to be safe and well-tolerated, and it has few side effects when used as directed. However, it is important to follow the instructions provided by a healthcare professional to ensure safe and effective use.
How many sessions are needed?
For hyperhidrosis (excessive sweating), the treatment involves daily or weekly sessions over several weeks, followed by a maintenance schedule of less frequent sessions to keep the symptoms under control.
The duration of each session will vary depending on the individual case, but typically ranges from 20 to 40 minutes.
It is important to follow the recommended treatment plan and attend all scheduled sessions to achieve the best possible outcomes.
Iontophoresis
Why come to Derma for your treatment?
Receiving iontophoresis treatment under the guidance of trained nurses can offer several potential benefits:
- Experienced nurses can ensure the treatment is delivered safely and effectively, using appropriate settings and dosages based on the individual’s needs and medical history.
- Allows for more precise and consistent delivery of the therapy, as the equipment and techniques used in the clinic are more advanced than those available for home use.
- More robust monitoring of progress and adjust treatment as needed throughout the course which leads to better outcomes.
However, iontophoresis can be done at home as well, with the use of equipment prescribed by a dermatologist. The decision to receive treatment in a clinic or at home should be made in consultation with a healthcare professional, based on individual needs and circumstances. Often it is recommended that the initial treatment schedule is carried out in a clinic then maintenance doses can be carried out at home using a cheaper, commercially available machine.
What are the benefits of iontophoresis?
Iontophoresis has several potential benefits, including:
Localised treatment: Since iontophoresis delivers the medication or therapeutic agent directly to the target area, it can provide a more targeted and localised treatment than other delivery methods.
Reduced systemic side effects: By delivering drugs directly to the affected area, iontophoresis can potentially reduce the risk of systemic side effects that can occur when drugs are taken orally or injected.
Safe and well-tolerated: Iontophoresis is generally considered safe and well-tolerated, with few reported side effects when used as directed.
However, it is important to note that not all conditions can be treated with iontophoresis, and the effectiveness of the treatment may vary depending on the individual case. It is always important to consult with a healthcare professional before starting any new treatment.
Are there any contraindications to the treatment?
- Pregnancy, although the risks are unknown. However, it is safe if you are breastfeeding
- Epilepsy
- Patients with a metal implant that may be affected by the flow of the current such as joint replacements
- Patients with electrical implants such as a pacemaker
If iontophoresis is administered in clinic by experienced healthcare professionals then the side effects above are unlikely, as treatment will be adjusted according to the patient’s tolerance.
What is the process of iontophoresis at Derma?
The course lasts over a month. The treatment will always start on a Tuesday:
- First week on days 1, 2 and 4
- Second week on days 7 and 10
- Third week on day 15
- Fourth week on day 22.
Depending on the site of treatment, you may need to remove your top to expose the armpits otherwise you can roll up your sleeves or remove your socks and shoes.
Metal piercings will need to be removed during the treatment.
The treatment involves placing the affected sites (hands and/or feet) in a water bath just covering approximately halfway up the affected areas, a low dosage electrical current will then be passed through. You will need to remain in position for 20-40 minutes.
Hands and feet can be treated at the same time, but the axilla will need a separate treatment. Each treatment will take 20-40 minutes, so if the axilla and hands are being treated it will take over an hour.
Most patients feel a tingling sensation which lasts for a while after the session, but it is expected that you will be able to go home and carry on with normal household tasks following treatment.
What are the side effects of iontophoresis?
Iontophoresis is generally considered to be a safe and well-tolerated treatment, with few reported side effects. However, some individuals may experience mild discomfort or skin irritation during or after the treatment. Other potential side effects may include:
- Skin irritation: Iontophoresis may cause skin irritation or redness at the site of treatment, particularly if the treatment is administered at high intensity or for an extended period of time.
- Skin dryness or mild dermatitis which can be treated with emollients.
- Tingling or itching: Some individuals may experience a mild tingling or itching sensation during the treatment, which settles on cessation of treatment.
- Burns or skin damage: If the treatment is administered at too high an intensity or for too long, it may cause burns or other damage to the skin.
It is important to consult with a healthcare professional before starting iontophoresis treatment to discuss any potential risks or side effects. If any side effects or adverse reactions are experienced during treatment, it is important to stop the treatment and seek medical attention.
What about aftercare?
Further reading: Patient leaflet from the British Association of Dermatologists
Related Specialists at Derma
Your consultation
Your consultation is with a consultant dermatologist, who will diagnose your condition and plan your treatment.

Dr Charles Archer
Consultant Dermatologist
General dermatologySkin surgery
Special interests in skin cancer, lasers and complex medical dermatology.

Dr Sanju Arianayagam
Consultant Dermatologist
General dermatologySkin surgery
Leads the specialist photosensitivity clinic in Oxford.

Dr Rima Clayton
Consultant Dermatologist
General dermatologyPaediatric dermatologySkin surgery
Founder of Derma Reading, seeing adults and children, with a particular interest in skin cancer and skin surgery.

Dr Rachel Fisher
Consultant Dermatologist
General dermatologySkin surgery
Specialist interests in skin cancer and vulval dermatology, and clinical lead for dermatology in Reading and West Berkshire.

Dr Sabrina Khan
Consultant Dermatologist
General dermatologySkin surgery
Specialist interest in vulval dermatology, and lead for the Oxford NHS vulval service.

Dr Inge Kreuser-Genis
Consultant Dermatologist
General dermatologyPaediatric dermatologySkin surgery
Specialist interests in paediatric and vulval dermatology.

Dr Antonia Lloyd-Lavery
Consultant Dermatologist
General dermatology
Specialist interests in severe eczema and psoriasis, autoimmune blistering diseases and connective tissue diseases.

Professor Rubeta Matin
Consultant Dermatologist
General dermatology
Specialist interests in skin cancer and moles, skin disease in transplant and immunosuppressed patients, and cutaneous lymphoma.

Dr John Reed
Consultant Dermatologist
General dermatologySkin surgery
Specialist interest in urticaria, angioedema and allergy.

Dr Isabelle Vandormael
Consultant Dermatologist
General dermatologySkin surgery
Particular interest in lasers and cosmetic dermatology.
Your treatment
Your treatment sessions are carried out by our nursing team.

Diane Murphy
Nurse Team Leader
Leads our nursing team, making sure every patient receives safe, high-quality care.

Sarah Peett
Senior Dermatology Nurse
Specialist dermatology nurse with a background in surgical, medical and midwifery care.

Aleesa Dela Vega
Dermatology Nurse
Dermatology nurse with experience in respiratory and intensive care, known for her caring approach.

Roberta Cattolico
Dermatology Nurse
Works alongside our consultants in clinic, with a focus on patch testing and phototherapy.

Sandra Marcikic
Healthcare Assistant
Supports our patients and clinicians in clinic, drawing on her medical background.
