Acne vulgaris is a chronic skin disease of the pilosebaceous unit and develops due to blockages in the skin's hair follicles. These blockages are thought to occur as a result of the following four abnormal processes: a higher than normal amount of oily sebum production (influenced by androgens), excessive deposition of the protein keratin leading to comedo formation, colonization of the follicle by Cutibacterium acnes (C. acnes) bacteria, and the local release of pro-inflammatory chemicals in the skin.
Hormonal fluctuations and an imbalance of estrogen and testosterone levels have proven to be a direct cause of acne. For this reason, many experience an onslaught of breakouts during puberty and pregnancy. The brain releases a GnRH hormone when an adolescent begins puberty, which in turn signals the pituitary gland to release two additional androgens. Androgens make the sebaceous glands produce more sebum, causing it to occupy too much space within the pore and preventing the full expulsion of dead skin cells and debris. Fluctuations in hormones also cause many women to experience acne during pregnancy and a worsening of breakouts during menstrual cycles.
Warning: Sulfur smells like rotten eggs. But it is an effective ingredient at drying up pus-filled pimples and whiteheads (you’ve gotta take the good with the bad). It works by sucking up the oil. Sulfur is typically mixed with other active ingredients to get the most efficacy and fragrances to mask the strong scent. You can often find it in masks and spot treatments.
Pustules are another form of moderate acne very similar to papules. The difference is that pustules are filled with liquid pus, giving them a white or yellowish appearance akin to blisters. They’re accompanied by surrounding inflammation and are usually tender and hard (but not as hard as papules). Pustules appear when white blood cells attempt to fight off infection within a given area.
Like acne on your face, back acne occurs when your pores become blocked with oil and dead skin cells. Exfoliating your back regularly might help remove these dead skin cells and pore-clogging debris before they have a chance to block pores. However, you want to take care not to scrub too hard, especially if you're experiencing an active breakout. Use a soft cloth to gently brush away surface impurities as you shower.
No one knows exactly what causes acne. Hormone changes, such as those during the teenage years and pregnancy, probably play a role. There are many myths about what causes acne. Chocolate and greasy foods are often blamed, but there is little evidence that foods have much effect on acne in most people. Another common myth is that dirty skin causes acne; however, blackheads and pimples are not caused by dirt. Stress doesn't cause acne, but stress can make it worse.
Scars (permanent): People who get acne cysts and nodules often see scars when the acne clears. You can prevent these scars. Be sure to see a dermatologist for treatment if you get acne early — between 8 and 12 years old. If someone in your family had acne cysts and nodules, you also should see a dermatologist if you get acne. Treating acne before cysts and nodules appear can prevent scars.