Cystic acne is mostly polymerized acne and is usually treated with topical ointments such as Vicodin cream, oral medications such as Doxycycline and physical therapy such as red and blue light. 1. Topical ointments: commonly used ointments include adapalene gel, fusidic acid cream, and retinoic acid ointment, etc. These medications are anti-inflammatory and antikeratinizing, which can reduce inflammatory reactions and eliminate acne to a certain extent. However, they may have side effects such as skin tingling and redness, and are not recommended to be used if the patient is allergic. 2. Oral medications: commonly used drugs such as doxycycline, minocycline capsules, these drugs can cause gastrointestinal adverse reactions or even shock or allergic reactions, children under eight years of age and pregnant women are prohibited, and patients with hepatic insufficiency do not try to take. 3. Physical methods: the main use of photoelectric treatment, including red and blue light therapy, photodynamic therapy and so on. Patients with cystic acne need to consult a doctor in time, if you need to use medication to be used under the guidance of a doctor.