Acne, commonly known as acne vulgaris, is somewhat related to the vigorous secretion of one's own sebaceous glands. Spicy and irritating foods or staying up late can also cause it. If the acne is in the inflammatory phase and is very red and painful, try not to squeeze it, as this can easily lead to scarring or pits later on. If an individual acne lesion has become purulent and feels soft to the touch, you can prick it with a needle and squeeze out the pus, which can speed up recovery later. However, it is still recommended to use standard medications and combined red and blue light therapy, as this is less likely to cause skin damage and the recovery effects are generally better. It is also advisable to develop good dietary and lifestyle habits. (Doctor's answer is for reference only, administer medication under the guidance of a professional physician, do not blindly medicate.)