This is because your mother usually takes in too much oil, and the lymphatic excretion of her own metabolic oil is slow, so the oil can't be discharged, so it comes out from the pores of her nose. If the oil is not cleaned in time after backflow, it is easy to oxidize with air, harden and turn black, and form blackheads. Usually, you must eat less snacks, especially fried ones, because your own function of excreting oil is innate, so you can only pay attention to your diet. Don't let her use products to remove blackheads. I'm a beautician, and our beauty salon has many products to remove blackheads. If you insist on removing blackheads once every three days or once a week, you may lose weight a month later, but as long as you don't pay attention to your diet, such as eating barbecue, night market and fried food, blackheads will definitely come out, and if you pay attention, you will find that blackheads will be bigger and darker than the original ones. This is because blackheads are a problem of oil secretion in the body. Blackheads are only used to squeeze out the oxidized oil on the surface, and the symptoms are not cured. After the blackhead is extruded, the pores will be bigger, and even if you use pore shrinking solution, it will not be the same as before, which gives the next blackhead a lot of space. This is the reason why more and more blackheads are squeezed, which is the reason. The best and most natural way is to wipe your nose with cooked egg white or refined salt, at least it won't get worse.