Black hair growth on the nose is a normal condition and can usually be left untreated. If the black hairs grow too long and have an effect on the aesthetics, they can be cut off with scissors.
Nose hair is usually normal, nasal hair has the role of protecting the mucous membrane of the nasal cavity, maintaining the humidity and temperature of the nasal cavity, to avoid the outside world microorganisms and dust into the nasal cavity and so on. Nasal hairs have many beneficial physiological functions, so under normal circumstances, nasal hairs do not need to be dealt with.
If the nasal hairs grow too much and stick out of the nasal cavity, which affects the beauty, you can use scissors to cut them carefully, and it is recommended to cut off a little bit appropriately, but you need to pay attention to the cutting of nasal hairs, do not damage the mucous membrane of the nasal cavity, so as not to cause infection.