Antibiotics are generally very safe.
They are most commonly used to treat acne, but some other skin disorders, such as rosacea, skin infections and perioral dermatitis, also respond to antibiotic treatment. Since antibiotics do not cure, but only suppresses most of these skin disorders, it may be necessary to continue taking them for months or even years. There is a bacteria that normally lives on the skin called Propionibacterium acnes . This bacteria feeds on the sebum produced by the skin's oil glands. Sometimes, this bacteria multiplies and causes inflammation and skin disease.