Acne is a chronic inflammatory skin disease of the sebaceous glands of the hair follicles, and is a cosmetic skin disease because it occurs on the face. Chronic means that the disease is long-lasting, and once acne attacks, it is often slow to go away, for a few years or even longer. When God began to give wonderful youth to young people, he also gave them annoying acne. Initially, acne is often confined to the forehead, but as we age, its “position” gradually expands to include the sides of the nose, cheeks, mouth, and chin, and in severe cases, the back of the chest is also filled with acne. Acne is not the preserve of young boys and girls, but there are many patients who are still suffering from acne even though their youth has passed. It is important to note that some adult women may have ovarian problems behind their stubborn acne – polycystic ovary syndrome, which is associated with menstrual disorders in addition to cosmetic problems. The family tree of acne includes whiteheads (small rice-grain size with no opening at the top), blackheads (small rice-grain size with black opening at the top), pimples (typical red pimples, green pea size), pustules (small head in the center of the pimple), nodules (corn-grain size, red and hard nodules), and cysts (numerous inflamed pimples squeezed together and linked into a sheet). The first three types of pimples generally do not leave traces when they subside, but the last two types of pimples can cause lifelong regret if not treated in a timely manner and can result in sexual scarring. Severe cases can leave scarring and cause permanent disfigurement. Do not eat seafood, chili and meat: research shows that acne has nothing to do with diet, the most telling is that Sichuan people love to eat chili, but the incidence of acne is not higher than other places. Therefore, you can enjoy all kinds of food with confidence even if you have acne. The actual fact is that you can find a lot of people who are not able to get a good deal on a lot of things.