Most acne bumps on the face are acne vulgaris, a kind of folliculitis caused by bacterial infection of the hair follicles, which usually occurs during adolescence and is related to the high secretion of sebaceous glands, local blockage of the hair follicle opening combined with Propionibacterium acnes infection. If the rash is only scattered red papules and small pustules, only topical medications such as topical fusidic acid cream, clindamycin gel, adapalene gel, etc. can be applied. If the rash is more generalized, more numerous, combined with cysts and nodules, or even a rash on the chest and back, oral antibacterial medications, such as doxycycline or minocycline, can be taken to enhance the antibacterial and anti-inflammatory effects.