Before answering this question, let's first understand the characteristics of the skin around the nose, that is, the T-shaped area of the face (the sebaceous glands on the forehead, nose and upper back are the most, called sebum overflow area), because the sebaceous glands here are very rich, the pores are relatively thick, and the skin is greasy and smooth.
The "white thing" is sebaceous gland secretion, which is sebum. Its main components are wax fat, triglyceride and free fatty acid, and it is also mixed with phospholipids and cholesterol fat produced by epithelial cell metabolism. Sebum can protect and moisturize the skin.
But these sebum secretion problems, especially young people (age 15-35 years old), under the action of hormones, sebaceous glands secrete too much. Some adults with hormone secretion disorders or excessive hormone use will also appear. What is light is to squeeze out "white things", and there are many spoilage bacteria on the epidermis, which will smell when it is corrupt; When white things are oxidized, they become black, which is what we call "blackheads"; Sebaceous gland secretion blockage and infection are acne, acne, acne and so on.
Finally! As an otolaryngologist, it should be emphasized that the area around the nose is also called the danger triangle in medicine. Venous blood and intracranial blood vessels are connected here, which causes local infection and sometimes intracranial complications. So I can't squeeze it out here, mainly because my face is very clean and there are dust and acne. It is best to deal with it in the dermatology department of a regular hospital!