In clinical work, we often encounter patients who do not take acne seriously, believing that no treatment is needed and that it will stop growing at a certain age. So, should acne be treated or not? It is true that acne will not grow after a certain age. For those who have a few pimples occasionally, it does not matter much. If acne marks and pits are left behind, it will increase the difficulty and time of treatment on the one hand, and increase the cost of treatment on the other. Therefore, it is important to understand the severity of acne and to seize the opportunity to treat it in a timely manner so as not to delay the condition. I personally advocate that treatment should begin when acne is at the first level. At this time, local medication should be used, mainly drugs that dissolve acne, inhibit sebum secretion, exfoliate keratin and have antibacterial effects, supplemented by medical skin care products that moisturize, repair and reduce pigmentation, and physical therapy such as acne removal, red and blue light, and compound color light. For more information on how to determine the severity of acne, please refer to my article “Acne Severity Classification and Characteristics”.