What is acne?
Acne is a skin condition that occurs when your hair follicles become plugged with oil and dead skin cells. Acne usually appears on your face, neck, chest, back and shoulders. Effective treatments are available, but acne can be persistent. The pimples and bumps heal slowly, and when one begins to go away, others seem to crop up.
Acne is most common among teenagers, with a reported prevalence of 70 to 87 percent. Increasingly, younger children are getting acne as well.
Depending on its severity, acne can cause emotional distress and scar the skin. The earlier you start treatment, the lower your risk of lasting physical and emotional damage.
The most common topical prescription medications for acne are:
- Retinoids. These come as creams, gels and lotions. Retinoid drugs are derived from vitamin A and include tretinoin, adapalene and tazarotene. You apply this medication in the evening, beginning with three times a week, then daily as your skin becomes used to it. It works by preventing plugging of the hair follicles.
- Antibiotics. These work by killing excess skin bacteria and reducing redness. For the first few months of treatment, you may use both a retinoid and an antibiotic, with the antibiotic applied in the morning and the retinoid in the evening. The antibiotics are often combined with benzoyl peroxide to reduce the likelihood of developing antibiotic resistance.
- Antibiotics. For moderate to severe acne, you may need oral antibiotics to reduce bacteria and fight inflammation. Choices for treating acne include tetracyclines, such as minocycline and doxycycline.Your doctor likely will recommend tapering off these medications as soon as your symptoms begin to improve or as soon as it becomes clear the drugs aren’t helping — usually, within three to four months. Tapering helps prevent antibiotic resistance by minimizing undue exposure to these medications over a long time.You will likely use topical medications and oral antibiotics together. Studies have found that using topical benzoyl peroxide along with oral antibiotics may reduce the risk of developing antibiotic resistance.Antibiotics may cause side effects, such as an upset stomach and dizziness. These drugs also increase your skin’s sun sensitivity. They can cause discoloration of developing permanent teeth and reduced bone growth in children born to women who took tetracyclines while pregnant.
- Combined oral contraceptives. Combined oral contraceptives are useful in treating acne in women and adolescent girls. The Food and Drug Administration approved three products that combine estrogen and progestin (Ortho Tri-Cyclen, Estrostep and Yaz).The most common side effects of these drugs are headache, breast tenderness, nausea, weight gain and breakthrough bleeding. A serious potential complication is a slightly increased risk of blood clots.
- Anti-androgen agent. The drug spironolactone (Aldactone) may be considered for women and adolescent girls if oral antibiotics aren’t helping. It works by blocking the effect of androgen hormones on the sebaceous glands. Possible side effects include breast tenderness, painful periods and the retention of potassium.
- Isotretinoin. This medicine is reserved for people with the most severe acne. Isotretinoin is a powerful drug for people whose acne doesn’t respond to other treatments.Oral isotretinoin is very effective. But because of its potential side effects, doctors need to closely monitor anyone they treat with this drug. The most serious potential side effects include ulcerative colitis, an increased risk of depression and suicide, and severe birth defects.In fact, isotretinoin carries such serious risk of side effects that women of reproductive age must participate in a Food and Drug Administration-approved monitoring program to receive a prescription for the drug.
Acne Treatment Procedures:
Chemical peel. This procedure uses repeated applications of a chemical solution, such as salicylic acid. It is most effective when combined with other acne treatments, except oral retinoids. Chemical peels aren’t recommended for people taking oral retinoids because together these treatments can significantly irritate the skin.
Chemicals peels may cause temporary, severe redness, scaling and blistering, and long-term discoloration of the skin.
- Extraction of whiteheads and blackheads. Your dermatologist uses special tools to gently remove whiteheads and blackheads (comedos) that haven’t cleared up with topical medications. This technique may cause scarring.
- Steroid injection. Nodular and cystic lesions can be treated by injecting a steroid drug directly into them. This improves their appearance without the need for extraction. The side effects of this technique include thinning of the skin, lighter skin and the appearance of small blood vessels on the treated area.