Acne and its treatments, the sebaceous gland is in hypersecretion. Cut of skin of the epidermis and dermis. Normal hair follicle and acne pimple in the center. The acne pimple forms around the hair follicle with hyper-keratinization and inflammation of the epidermis caused by glycerides (in yellow) under the action of Propionibacterium acnes bacteria (in red). Polynuclear blood vessels are flowing.