Acne that clears up can recur. Acne is the most common chronic inflammatory disease of the follicular sebaceous glands in dermatology, and may be associated with large amounts of sebum secretion, keratinization of the follicular sebaceous gland ducts, propagation of Propionibacterium acnes, and immune-inflammatory responses. In some patients, the onset of the disease is also influenced by genetic, immune, endocrine, emotional and dietary factors. Acne can be treated with topical application of medications such as retinoic acid and benzoyl peroxide, as well as oral treatment with antibiotics such as doxycycline. You need to pay attention to daily skin cleaning, keep your face clean and hygienic, develop a good lifestyle, healthy eating habits, avoid irritating the skin, and follow your doctor’s instructions for medication.