If there is acne on the neck, it is generally possible that there is folliculitis on the neck, and the occurrence of folliculitis may be inflammatory damage caused by bacterial infection. Or it is because patients often stay up late, fatigue, and eat spicy and stimulating food, resulting in local conditional pathogen infection. For example, propionibacterium acnes infection, so the formation of inflammatory papules. Of course, it may also be malassezia folliculitis caused by fungal infection in this part, and this type of folliculitis may be related to the patients' improper drug use, such as improper use of some glucocorticoid products, which may cause certain conditional pathogen infection. For example, Malassezia infection occurs, resulting in such skin damage.