Most people who use Modius will not experience any side effects. Sometimes in people with particularly sensitive skin, it can cause irritation and redness of the skin behind the ears. If this happens, we recommend discontinuing use and consulting your doctor. Other symptoms that might sometimes occur with stimulation of the vestibular nerve include headache and nausea, which are typically reported as mild and short-lived. However, if you are concerned about such symptoms discontinue using Modius and consult your doctor.

Additionally, since Modius activates a nerve associated with balance, it produces a gentle, rocking feeling for many users. This experience can mimic the sensation of being on a boat, especially when the stimulation level is high. For users that are prone to motion sickness, this may cause some discomfort. To avoid this, we recommend starting at a low power level (no higher than level 2 or 3) and only increasing very gradually over time as your body gets used to the stimulation. Users should stick with a level that they’re comfortable with (there are 10 levels to choose from). If the problem persists, you can return Modius for a full refund within 45 days of purchase if you have purchased from our website,
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