There are black patches on my cat’s nose. If it’s not dust, it’s folliculitis. Mild folliculitis in the nose of cats can occur due to reasons such as drinking water or eating. At this time, the owner does not need to be nervous, but needs to prepare: salt water and anti-inflammatory drugs to treat the cat. Then use salt water to clean the black spots, and then apply anti-inflammatory drugs. You can also combine it with sun exposure and it will get better in a few days.