If cystic, nodular, pustular, or scarring acne occurs on the face, it is considered severe acne and can be treated with medication, liquid nitrogen freezing treatment, or medical aesthetic treatment, as follows: 1. Medication: For treatment, patients can take oral compound glycyrrhetinic acid tablets and vincristine capsules, as well as oral rosmarinic acid capsules, and for topical medication, a mixture of adapalene gel and mucopolysaccharide polysulfate cream can be used topically. 2. Liquid nitrogen freezing treatment: For cystic and nodular acne, patients can consider liquid nitrogen freezing treatment in the dermatology office. 2. Liquid nitrogen freezing treatment: For cystic and nodular acne, patients can consider going to the dermatology office for liquid nitrogen freezing treatment, after the above treatment, some patients can be quickly relieved and cured. 3. Medical aesthetic treatment: Patients with cystic and pustular acne can choose to go to a regular tertiary hospital for medical aesthetic treatment. You can choose photorejuvenation, laser treatment, hydraluminescence treatment, and also gold microneedle and ion introduction treatment. During the treatment period, patients need to abstain from spicy and stimulating foods, abstain from alcohol, keep a regular routine, pay attention to rest, reduce late nights, and reduce fried and sweet food intake. Be sure to pay attention to sun protection and refrain from squeezing cysts, pustules, and scarring acne with your hands.