Sudden acne breakouts that rot the face are usually referred to as violaceous acne, the etiology of which is unclear and may be related to an allergic reaction caused by the colonization of Corynebacterium acnes. Acne vulgaris is a cystic type of acne, and there may be clusters of inflammatory papules and pustular lesions on the face, neck, chest and back, as well as high fever, joint pain, fatigue, muscle aches and pains, etc. It may be due to infection by Corynebacterium acnes, which leads to the body’s type III or type IV allergic reaction. When the symptoms of fulminant acne appear, go to the hospital in time, carry out the relevant treatment under the guidance of the physician, strictly follow the doctor’s instructions to use medication, usually ensure balanced nutrition, eat more fresh fruits and vegetables, eat less spicy, greasy, raw and cold food, keep the skin clean and dry, and avoid scratching and extruding the affected area.