For acne, it is not recommended to squeeze, pick or scratch by yourself to avoid infection. Acne, clinically known as acne, is a common disease in dermatology and is mainly classified as closed acne, blackhead acne, inflammatory papules, pustules, nodules, cysts, etc. For acne, it is important to adopt a standardized treatment. During the treatment period, it is necessary to avoid squeezing out the contents of the acne because there are many bacteria on the hands and squeezing the acne may not only aggravate the inflammatory reaction and cause secondary infection, but also lead to obvious hyperpigmentation, acne marks and pits. Especially for pimples located in the dangerous triangle of the face, squeezing by hand may cause large redness and swelling, and in serious cases may lead to septic bacteria entering the venous sinus and causing intracranial infection. Therefore, when acne occurs, patients are not advised to squeeze it by themselves and can go to the dermatology department of the hospital for reasonable treatment by the doctor for the best treatment effect.