Only the exposed part of the nose can be trimmed with a special nose hair trimmer. Nose hair is a part of the nasal cavity, which can keep the nasal cavity moist and prevent harmful substances and cold air from entering the nasal cavity. When the nose hair is violently pulled out or excessively trimmed, resulting in insufficient nose hair, it is impossible to keep the nasal cavity moist, which is prone to nasal dryness and affects health.

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