Atrophic acne scars have lost collagen from the healing response and are the most common type of acne scar (account for approximately 75% of all acne scars).[32][33] They may be further classified as ice-pick scars, boxcar scars, and rolling scars.[31] Ice-pick scars are narrow (less than 2 mm across), deep scars that extend into the dermis.[32] Boxcar scars are round or ovoid indented scars with sharp borders and vary in size from 1.5–4 mm across.[32] Rolling scars are wider than icepick and boxcar scars (4–5 mm across) and have a wave-like pattern of depth in the skin.[32]
Bowling was right not to worry. Baby acne — or newborn acne, as it’s called to distinguish it from infantile acne, which occurs in older babies — is usually harmless and quite common. “It occurs in about 20 percent of newborns, typically around the time when they’re 3 – to 4-weeks-old,” says Mary Yurko, M.D., PhD, a pediatric dermatologist in Grand Rapids, Michigan.
Processed Foods: Ingredients found in processed and junk food such as chips, breakfast cereals and white bread are acne-inducing villains. Preservatives and additives can trigger hormonal fluctuations, and greasy fast food leads to inflammation all over your body – including your face. Refined grains are quickly broken down and turned into sugar, which creates a terrible effect on skin by aggravating acne.
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Any acne treatment is a weeks-long experiment that you’re conducting with your skin. Acne is slow to heal, and in some cases, it can get worse before it gets better (nearly every benzoyl peroxide product we looked at emphasized the likeliness of irritating acne further, and starting off with a lighter application). April W. Armstrong, a doctor at the University of California Davis Health System, recommends waiting at least one month before you deem a product ineffective.
Postinflammatory hyperpigmentation (PIH) is usually the result of nodular acne lesions. These lesions often leave behind an inflamed darkened mark after the original acne lesion has resolved. This inflammation stimulates specialized pigment-producing skin cells (known as melanocytes) to produce more melanin pigment which leads to the skin's darkened appearance.[35] People with darker skin color are more frequently affected by this condition.[36] Pigmented scar is a common term used for PIH, but is misleading as it suggests the color change is permanent. Often, PIH can be prevented by avoiding any aggravation of the nodule, and can fade with time. However, untreated PIH can last for months, years, or even be permanent if deeper layers of skin are affected.[37] Even minimal skin exposure to the sun's ultraviolet rays can sustain hyperpigmentation.[35] Daily use of SPF 15 or higher sunscreen can minimize such a risk.[37]
Use oil-free makeup. If you wear makeup, you may be stuck in a vicious cycle of covering up acne while simultaneously causing it with your cover-up usage. Find acne-fighting oil-free mineral makeup to help prevent worsening your acne while simply trying to hide it. Power foundations are also recommended. When possible, avoid wearing make-up at all though as it clogs your pores over the course of the day.

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Another vice that can lead to worsened acne is alcohol. As we mentioned, your diet and acne are related. One glass of wine won’t trigger a breakout – even contains beneficial antioxidants! – but excessive alcohol consumption can alter your hormone levels. Making matters worse, many people drink due to stress, which also affects acne-inducing hormones. Alcohol impairs the liver’s ability to purify toxins, and if the liver is compromised, toxins are expelled through different channels such as your skin. It’s full of that sugar we just warned you about and weakens your immune system, which inhibits your body’s natural ability to fight off P. acnes bacteria. If you pass out after a night of drinking without washing your face, your pores are more likely to become clogged and create pimples. Almost everyone enjoys indulging in a drink every now and then, but moderation here is key.

Decreased levels of retinoic acid in the skin may contribute to comedo formation. To address this deficiency, methods to increase the skin's production of retinoid acid are being explored.[10] A vaccine against inflammatory acne has shown promising results in mice and humans.[50][181] Some have voiced concerns about creating a vaccine designed to neutralize a stable community of normal skin bacteria that is known to protect the skin from colonization by more harmful microorganisms.[182]
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Combination therapy—using medications of different classes together, each with a different mechanism of action—has been demonstrated to be a more efficacious approach to acne treatment than monotherapy.[10][47] The use of topical benzoyl peroxide and antibiotics together has been shown to be more effective than antibiotics alone.[10] Similarly, using a topical retinoid with an antibiotic clears acne lesions faster than the use of antibiotics alone.[10] Frequently used combinations include the following: antibiotic and benzoyl peroxide, antibiotic and topical retinoid, or topical retinoid and benzoyl peroxide.[47] The pairing of benzoyl peroxide with a retinoid is preferred over the combination of a topical antibiotic with a retinoid since both regimens are effective but benzoyl peroxide does not lead to antibiotic resistance.[10]

Antibiotics are frequently applied to the skin or taken orally to treat acne and are thought to work due to their antimicrobial activity against C. acnes and their ability to reduce inflammation.[20][81][87] With the widespread use of antibiotics for acne and an increased frequency of antibiotic-resistant C. acnes worldwide, antibiotics are becoming less effective,[81] especially macrolide antibiotics such as topical erythromycin.[16][87] Therefore, they are not recommended for use alone but are preferred as part of combination therapy.[15] Commonly used antibiotics, either applied to the skin or taken orally, include clindamycin, erythromycin, metronidazole, sulfacetamide, and tetracyclines such as doxycycline and minocycline.[47] Doxycycline 40 milligrams daily (low-dose) appears to have similar efficacy to doxycycline 100 milligrams daily and has fewer gastrointestinal side effects.[15] When antibiotics are applied to the skin, they are typically used for mild to moderately severe acne.[20] Antibiotics taken orally are generally considered to be more effective than topical antibiotics, and produce faster resolution of inflammatory acne lesions than topical applications.[1] Topical and oral antibiotics are not recommended for use together.[87]
Postinflammatory hyperpigmentation (PIH) is usually the result of nodular acne lesions. These lesions often leave behind an inflamed darkened mark after the original acne lesion has resolved. This inflammation stimulates specialized pigment-producing skin cells (known as melanocytes) to produce more melanin pigment which leads to the skin's darkened appearance.[35] People with darker skin color are more frequently affected by this condition.[36] Pigmented scar is a common term used for PIH, but is misleading as it suggests the color change is permanent. Often, PIH can be prevented by avoiding any aggravation of the nodule, and can fade with time. However, untreated PIH can last for months, years, or even be permanent if deeper layers of skin are affected.[37] Even minimal skin exposure to the sun's ultraviolet rays can sustain hyperpigmentation.[35] Daily use of SPF 15 or higher sunscreen can minimize such a risk.[37]
Inflammatory Acne: Inflammatory acne is red bumps and pustules, not whiteheads, blackheads and comedones. It doesn't necessarily start as them, either. It arises on its own. Whiteheads, blackheads or comedones that become inflamed can be painful and unsightly. Persistent inflammatory acne may require treatment by a physician or dermatologist, in addition to over-the-counter acne remedies.

Hormonal acne is exactly what it sounds like: breakouts that are tied to fluctuations in hormones. If your skin flares up at the same time each month, tends to occur in the same spot (chin, cheeks, jawline), and is characterized by pimples that are deep and cystic, your acne might be hormonal. Hormonal acne is usually due to a sensitivity to androgens, which are a specific type of hormone. With respect to acne, the androgen in charge is testosterone. Testosterone (and estrogen) are produced and needed by both sexes, but women are sensitive to extraneous amounts since it’s unnecessary for their typical functioning. The excess androgen has to go somewhere, and is usually purged via the skin’s androgen receptor cells which creates breakouts. While testosterone remains in the bloodstream, it increases sebum production and can make breakouts worse.
Look for a mattress that allows enough space so that your partner can move around without impacting you or consider a mattress made for two sleepers like the Sleep Number bed.[1] This bed allows each person to choose their own firmness level. It also minimizes any disturbances their partner might feel. A foam mattress like the kind featured in advertisements where someone jumps on a bed with an unspilled glass of wine will help minimize the impact of your partner’s movements.[2]
Isotretinoin is a standard prescription that you can get from your doctor. You may have heard of the brand names Absorica®, Accutane®, Amnesteem®, Claravis®, Myorisan®, Sotret® and Zenatane™. CBS News reports that Accutane has some pretty serious side effects, possibly even death. One man reported severe inflammatory bowel disorder that required removal of his colon. It’s been noted that it can cause miscarriage, birth defects, increased internal skull pressure, bone mineral density problems, depression, psychosis, suicide, aggressive or violent behaviors, acute pancreatitis, cardiovascular issues, deafness, hepatitis, bowel disease, excessive bone growth, night blindness and sight loss. (6) 

All the dermatologists we talked to agreed that there is no one-size-fits-all solution to acne. Every patient responds to treatments differently, and sometimes it can get worse before it gets better. But with the help of your dermatologist, you can find an acne treatment regimen that works for you. And, yes, we do stress how helpful it is to work with a derm to get it right.


Hydroquinone lightens the skin when applied topically by inhibiting tyrosinase, the enzyme responsible for converting the amino acid tyrosine to the skin pigment melanin, and is used to treat acne-associated postinflammatory hyperpigmentation.[35] By interfering with new production of melanin in the epidermis, hydroquinone leads to less hyperpigmentation as darkened skin cells are naturally shed over time.[35] Improvement in skin hyperpigmentation is typically seen within six months when used twice daily. Hydroquinone is ineffective for hyperpigmentation affecting deeper layers of skin such as the dermis.[35] The use of a sunscreen with SPF 15 or higher in the morning with reapplication every two hours is recommended when using hydroquinone.[35] Its application only to affected areas lowers the risk of lightening the color of normal skin but can lead to a temporary ring of lightened skin around the hyperpigmented area.[35] Hydroquinone is generally well-tolerated; side effects are typically mild (e.g., skin irritation) and occur with use of a higher than the recommended 4% concentration.[35] Most preparations contain the preservative sodium metabisulfite, which has been linked to rare cases of allergic reactions including anaphylaxis and severe asthma exacerbations in susceptible people.[35] In extremely rare cases, repeated improper topical application of high-dose hydroquinone has been associated with an accumulation of homogentisic acid in connective tissues, a condition known as exogenous ochronosis.[35]

To many parents’ dismay, their beautiful newborn’s face breaks out with red bumps at around 3 to 4 weeks of age. This is called baby acne. It tends to occur at about the same age as the baby’s peak gas production and fussiness. How attractive! (This all coincides with parents’ maximum sleep deprivation.) Parents are often quite concerned both about how these bumps look and about their significance.
A BHA product often cited includes salicylic acid, it must be between a pH between 3 and 4 to work. A BHA works to slough (to get rid of) off dead skin cells and encourage new skin growth. As a result, you may experience dry skin and scaliness around your acne, but this will dissipate over time as your skin begins to regenerate faster. Use this in a cleanser or spot treatment daily on the acne-affected areas of your skin.[6]

The costs and social impact of acne are substantial. In the United States, acne vulgaris is responsible for more than 5 million doctor visits and costs over US$2.5 billion each year in direct costs.[13] Similarly, acne vulgaris is responsible for 3.5 million doctor visits each year in the United Kingdom.[20] Sales for the top ten leading acne treatment brands in the US in 2015, have been reported as amounting to $352 million.[176]
Spironolactone is an androgen blocker. It can be used to treat hormonal acne in women (only) by reducing the production of androgens (male hormones) in a woman's body, which can then reduce oil production in the skin. If you're wondering how to get rid of acne overnight, keep in mind that aldactone can take up to three months to start taking effect.
That’s good news because the British Medical Journal reports that acne affects more than 80 percent of teenagers and continues in adult life in 3 percent of men and 12 percent of women. In fact, it seems to be increasing, which could be due to autoimmune disease, leaky gut syndrome or allergies, for example. Hormonal factors may play a role in breakouts as well. (1)
Contrary to the marketing promises of “blemish banishers” and “zit zappers,” immediate results are not the trademark of acne treatments — a frustrating truth to anyone suffering through a breakout. And while pimples are personal (your stress-induced spots will look and act differently than your best friend’s breakout), the best acne treatments will include a regimen of products to hit all of acne’s root causes. We tested 43 kits to find the most well-rounded breakout-fighting solutions on the market.
Acne usually improves around the age of 20, but may persist into adulthood.[75] Permanent physical scarring may occur.[20] There is good evidence to support the idea that acne and associated scarring negatively affect a person's psychological state, worsen mood, lower self-esteem, and are associated with a higher risk of anxiety disorders, depression, and suicidal thoughts.[3][31][51] Another psychological complication of acne vulgaris is acne excoriée, which occurs when a person persistently picks and scratches pimples, irrespective of the severity of their acne.[61][156] This can lead to significant scarring, changes in the affected person's skin pigmentation, and a cyclic worsening of the affected person's anxiety about their appearance.[61] Rare complications from acne or its treatment include the formation of pyogenic granulomas, osteoma cutis, and solid facial edema.[157] Early and aggressive treatment of acne is advocated by some in the medical community to reduce the chances of these poor outcomes.[4]
Oral isotretinoin is very effective. But because of its potential side effects, doctors need to closely monitor anyone they treat with this drug. 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 all people receiving isotretinoin must participate in a Food and Drug Administration-approved risk management program.
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