Acne is caused when the sebaceous glands in your skin get infected or inflamed. Blemishes and pimples are most commonly found on your face, chest and back. You have a system of oil glands under your skin, and this is where sebum is produced. Sebum is supposed to keep your skin healthily moisturized, but too much production of this oil can cause blackheads and whiteheads. When the oil is pushed out through your hair follicles, it can clog your pores if it attaches to bacteria or dead skin cells. If this happens, sebum will build up behind the plug and form a pimple. And we all know what that is.
The treatment regimen your doctor recommends depends on your age, the type and severity of your acne, and what you are willing to commit to. For example, you may need to wash and apply medications to the affected skin twice a day for several weeks. Often topical medications and drugs you take by mouth (oral medication) are used in combination. Pregnant women will not be able to use oral prescription medications for acne.