It may be infected. Most of them are caused by inflammation of hair follicles, which is related to excessive sebum secretion caused by staying up late. If the nose is infected as a whole, it will be red, swollen and painful, but it is only a local acne. It is suggested that Baiduobang should be used externally, and tanshinone capsules should be taken orally. Don't squeeze by hand, avoid spicy food, eat less greasy food and sweets, pay attention to rest, and don't stay up late, which is conducive to the regression of acne.