1. Please check if the trimmer head is damaged or worn out. It is recommended to replace it with a new one.
2. If the trimmer head is not damaged, the skin may not have adapted to it. It is normal that the skin is slightly irritated during the first few times when you shave. It is recommended to use the trimmer regularly (at least three times per week) over a three-week period so that your skin can adapt it as quickly as possible.
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