Could the effect wear off over time?

Yes, it can happen that the treatment becomes less effective over time. This is often due to minor application errors that can be quickly rectified. Common reasons for a decline in effectiveness include, for example:

• Water levels in the tubs are too high
  (see ‘Why is the correct water level in the tubs important?’)
• Too frequent use (“over-treatment”)
  (see ‘Can I over-treat?’)
• Simultaneous use of other therapies
  (see ‘What is important when combining tap water iontophoresis with other therapies?’)

If the treatment suddenly becomes less effective after a long period of successful therapy and none of these points apply, it is worth looking for changes in your daily routine or in how you use the treatment. Examples include:

• increased stress
• new or different medications
• different skincare products or cosmetics

Depending on the cause, you can adjust these factors – or use the treatment a little more frequently to restore the usual effect.

In rare cases, the body may simply become accustomed to the treatment. In such cases, it may help to take a break of at least 6 weeks and then resume the treatment.