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The inside of the nasal cavity should be wet or dry. Why do parents say that picking your nostrils with your fingers is not allowed?
Problem analysis:

Hello, you should consult whether the inside of the nasal cavity should be wet or dry. Parents should not let you pick your nose with your fingers.

Suggestion:

The nasal environment should be moist, and there are a lot of bacteria and viruses in the nostrils. Direct use of hands can easily cause nasal infection.