No one factor causes acne. Acne happens when oil (sebaceous) glands are activated at puberty, stimulated by male hormones from the adrenal glands in both boys and girls. Oil is a natural substance which lubricates and protects the skin. Under certain circumstances, cells that are close to the surface block the openings of sebaceous glands and cause a buildup of oil underneath. This oil stimulates bacteria, which live in everyone's skin and generally cause no problems, to multiply and cause surrounding tissues to become inflamed.
Sometimes it seems like pimples sprout up overnight, but the process of pimple formation is a bit more complex. So what are the most common causes of pimples? A variety of factors can result in an acne blemish. Pimples can develop on anyone at any age, but tend to be most common amongst teens. Why do teenagers get the brunt of breakouts? Hormone fluctuations. When hormone levels increase, the sebaceous glands found within the skin’s hair follicles produce an excess of sebum. Sebum is a waxy substance that the body produce to keep the skin soft and moisturized. However, when hormonal changes cause an increase in sebum production, the pores can become clogged. This sticky substance can collect dead skin cells, debris, and bacteria, forming a plug in the follicle. Blackheads, whiteheads, pimples, and pustules all begin the same way. Preventing pimples means discovering the reasons you’re breaking out and doing all you can to combat these factors. There is no single answer to the age old question of how to get rid of pimples.
Português: Se Livrar de Cicatrizes de Acne Rapidamente, Deutsch: Aknenarben über Nacht loswerden, 中文: 快速祛除痘疤, Русский: быстро убрать следы от угрей, Français: se débarasser rapidement des cicatrices d'acné, Nederlands: Snel van acnelittekens afkomen, Čeština: Jak se rychle zbavit jizev po akné, हिन्दी: मुहाँसों के दाग़ों से जल्दी छुटकारा पाएँ।, العربية: التخلص من ندوب حب الشباب بشكل سريع, ไทย: กำจัดรอยแผลเป็นจากสิวอย่างรวดเร็ว, 한국어: 여드름 자국 빨리 없애는 방법, Tiếng Việt: Trị Sẹo mụn Nhanh chóng, Español: deshacerse de las manchas y cicatrices dejadas por el acné, Bahasa Indonesia: Menghilangkan Parut dan Luka Bekas Jerawat, Italiano: Eliminare le Cicatrici Lasciate dall'Acne
Prescription Medications. Medications that affect hormones, like birth control pills, can help control acne. You might also discuss antibiotic pills and prescription retinoids with your dermatologist. There are also antibiotics that are effective. Doctors may prescribe Aldactone (spironolactone), which was first made to treat high blood pressure, to treat acne. "That works miracles but it can take three months to kick in," Day says. Isotretinoin is another prescription drug for acne, but you can't take it if you're pregnant or planning to get pregnant.
Use retinoid skin products. Retinoids are vitamin A derivatives which are used in a wide array of skin care products treating fine lines and wrinkles, skin discoloration, and acne. Retinoids boost collagen production and speed up cell turnover, making them a great choice for targeting acne scars. These creams can be a little on the pricey side, but they are highly recommended by dermatologists for their fast, effective results.
There are many treatments for mild acne. Mild acne can consist of whiteheads, blackheads and small pustules. At home, you can wash your face twice per day with warm water and a gentle cleanser or soap. Your doctor may suggest you also try an over-the-counter lotion or cream. These medicines may make your skin dry if you use them too much. Be sure to follow the directions.
5. You're scrubbing your skin too hard. A lot of people with acne think that the more you scrub your skin with a washcloth, rough exfoliants (like crushed apricot seeds), or cleansing brushes, the smoother your skin will be, but in reality, the problem will only inevitably get worse. What happens when you do that is you scrub the active acne and the blemish bacteria gets spread across the skin, worsening the condition.
The two laser treatment options above are great for acne scar removal, but aren't generally recommended as acne treatment. If you're still experiencing active acne breakouts and wondering how to get rid of acne with laser treatments, check out photodynamic therapy. It combats active moderate to severe acne while also diminishing older acne scars by using light energy to activate a powerful acne-fighting solution. Patients may require 2 or 3 treatments over several weeks and should expect some redness, peeling, and sun sensitivity. This treatment will cost between $2000 to $3500 per series.
Consider exfoliating with baking soda. Baking soda can be used to exfoliate the skin and minimize the appearance of acne scars. All you need to do is mix one teaspoon of baking soda with two teaspoons of water to form a liquid paste. Apply this paste all over your face and use gentle circular motions to rub the baking soda into the skin, concentrating on the scarred areas, for about two minutes. Rinse off with warm water and pat the skin dry. 
Yes. Although rosacea has a variable course and is not predictable in everyone, it gradually worsens with age, especially if untreated. In small studies, many rosacea sufferers have reported that without treatment their condition had advanced from early to middle stage within a year. With good therapy, it is possible to prevent progression of rosacea.