Steroids have long been known to cause acne. These drugs are generally taken without a prescription in order to gain muscle, but there are instances in which women are prescribed steroids for rare conditions. Steroids cause hormonal changes, and as the androgen hormones increase, so too does oil production. The more sebum, the greater chance of clogged pores. Steroids might also accelerate the growth of P. acnes, which can make pimples and inflammation worse.
If you really must do something about your pimple beyond washing your face and spot treating, ice or a cold compress can help reduce swelling. Wrap an ice cube or the compress in a soft tissue or cloth and apply it to your zit for 20-30 seconds at a time, a few times a day. In case of an emergency (like, prom), you can also see a dermatologist for a cortisone injection, which can help shrink the cyst down quickly in a day or two.
Another source of hormonal changes: stress. Whether you work full time, are a full-time mom, or juggle both, chances are, your stress levels are high. "When you're stressed, you have an organ called the adrenal gland that makes the stress hormone cortisol, and puts it out into the body to help the body deal with stress," Dr. Schultz explains. Unfortunately, a tiny bit of testosterone leaks out with it. For a woman, this male hormone can drive the oil glands to produce more oil—the root cause of breakouts. (Thanks a lot, hormones!)
Acne scars, on the other hand, are formed when there is damage to the skin which leads to abnormal collagen production, and usually appear raised or bumpy. "There are two types of acne scars: depressed and raised. Depressed scars may look like pits or craters, and raised scars may be firm and tender," explains Dr. Zeichner, who notes that unfortunately, these are permanent.
Whether your acne has persisted since your teenage years or has appeared as a new skin problem in later life, consider seeing a dermatologist if you're looking for treatment options. A specialist can help you determine the factors which may be triggering your acne and can help you with prescription medications to help regulate hormones or treat your breakouts without drying or otherwise irritating your aging skin.
Drugs: Some medications may cause or worsen acne, such as those containing iodides, bromides, or oral or injected steroids (either the medically prescribed prednisone [Deltasone, Orasone, Prednicen-M, Liquid Pred] or the steroids that bodybuilders or athletes sometimes take). Other drugs that can cause or aggravate acne are anticonvulsant medications and lithium (Eskalith, Lithobid). Most cases of acne, however, are not drug related.