The glands are attached to hair follicles, which are small holes in your skin that an individual hair grows out of. Sebaceous glands lubricate the hair and the skin to stop it drying out. They do this by producing an oily substance called sebum.
In acne, the glands begin to produce too much sebum. The excess sebum mixes with dead skin cells and both substances form a plug in the follicle. If the plugged follicle is close to the surface of the skin, it bulges outwards, creating a whitehead. Alternatively, the plugged follicle can be open to the skin, creating a blackhead. Normally harmless bacteria that live on the skin can then contaminate and infect the plugged follicles, causing papules, pustules, nodules or cysts.
Teenage acne is thought to be triggered by increased levels of a hormone called testosterone, which occurs during puberty. The hormone plays an important role in stimulating the growth and development of the penis and testicles in boys, and maintaining muscle and bone strength in girls.
The sebaceous glands are particularly sensitive to hormones. It's thought that increased levels of testosterone cause the glands to produce much more sebum than the skin needs. One study has found that if both your parents had acne, you're more likely to get more severe acne at an early age. It also found that if one or both of your parents had adult acne, you're more likely to get adult acne too.
It's thought that many cases of adult acne are caused by the changes in hormone levels that many women have at certain times. Despite being one of the most widespread skin conditions, acne is also one of the most poorly understood. There are many myths and misconceptions about it:. So far, research hasn't found any foods that cause acne.
Eating a healthy, balanced diet is recommended because it's good for your heart and your health in general. Most of the biological reactions that trigger acne occur beneath the skin, not on the surface, so the cleanliness of your skin has no effect on your acne.
Washing your face more than twice a day could just aggravate your skin. There's no conclusive evidence that prolonged exposure to sunlight or using sunbeds or sunlamps can improve acne. Many medications used to treat acne can make your skin more sensitive to light, so exposure could cause painful damage to your skin, and also increase your risk of skin cancer.
Your pharmacist can diagnose acne by looking at your skin. This involves examining your face and possibly your chest and back for different types of spot, such as blackheads or sore, red nodules. How many spots you have and how painful and inflamed they are will help determine how severe your acne is. This is important in planning your treatment. If acne suddenly starts in adult women, it can be a sign of a hormonal imbalance, especially if it's accompanied by other symptoms such as:.
The most common cause of hormonal imbalances in women is polycystic ovary syndrome PCOS. PCOS can be diagnosed using a combination of ultrasound scans and blood tests. Treatment for acne depends on how severe it is. It can take several months of treatment before acne symptoms improve. If you just have a few blackheads, whiteheads and spots, you should be able to treat them successfully with over-the-counter gels or creams topical treatments that contain benzoyl peroxide.
See your GP if your acne is more widespread, as you probably need prescription medication. For example, if:. If you have severe acne, your GP can refer you to an expert in treating skin conditions dermatologist. For example, if you have:. A combination of antibiotic tablets and topical treatments is usually the first treatment option for severe acne. If this doesn't work, a medication called isotretinoin may be prescribed.
Hormonal therapies or the combined oral contraceptive pill can also be effective in women who have acne. However, the progestogen-only pill or contraceptive implant can sometimes make acne worse. Many of these treatments can take 2 to 3 months before they start to work. It's important to be patient and persist with a recommended treatment, even if there's no immediate effect. Benzoyl peroxide works as an antiseptic to reduce the number of bacteria on the surface of the skin.
It also helps to reduce the number of whiteheads and blackheads, and has an anti-inflammatory effect. Benzoyl peroxide is usually available as a cream or gel. It's used either once or twice a day. It should be applied 20 minutes after washing to all of the parts of your face affected by acne. It should be used sparingly, as too much can irritate your skin. It also makes your face more sensitive to sunlight, so avoid too much sun and ultraviolet UV light, or wear sun cream.
Most people need a 6 week course of treatment to clear most or all of their acne. You may be advised to continue treatment less frequently to prevent acne returning.
Topical retinoids work by removing dead skin cells from the surface of the skin exfoliating which helps to prevent them building up within hair follicles. Tretinoin and adapalene are topical retinoids used to treat acne. They're available in a gel or cream and are usually applied once a day before you go to bed.
It's important to apply topical retinoids sparingly and avoid excessive exposure to sunlight and UV. Topical retinoids aren't suitable for use during pregnancy, as there's a risk they might cause birth defects.
A 6 week course is usually required, but you may be advised to continue using the medication less frequently after this. Topical antibiotics help kill the bacteria on the skin that can infect plugged hair follicles. They're available as a lotion or gel that is applied once or twice a day. A 6 to 8 week course is usually recommended. After this, treatment is usually stopped, as there's a risk that the bacteria on your face could become resistant to the antibiotics.
This could make your acne worse and cause additional infections. Azelaic acid is often used as an alternative treatment for acne if the side effects of benzoyl peroxide or topical retinoids are particularly irritating or painful. Azelaic acid works by getting rid of dead skin and killing bacteria.
It's available as a cream or gel and is usually applied twice a day or once a day if your skin is particularly sensitive. The medication doesn't make your skin sensitive to sunlight, so you don't have to avoid exposure to the sun. Antibiotic tablets oral antibiotics are usually used in combination with a topical treatment to treat more severe acne. In most cases, a class of antibiotics called tetracyclines is prescribed, unless you're pregnant or breastfeeding.
Pregnant or breastfeeding women are usually advised to take an antibiotic called erythromycin, which is known to be safer to use. Depending on how well you react to the treatment, a course of oral antibiotics can last 4 to 6 months. Tetracyclines can make your skin sensitive to sunlight and UV light, and can also make the oral contraceptive pill less effective during the first few weeks of treatment.
You'll need to use an alternative method of contraception, such as condoms , during this time. Hormonal therapies can often benefit women with acne, especially if the acne flares up around periods or is associated with hormonal conditions such as polycystic ovary syndrome.
If you don't already use it, your GP may recommend the combined oral contraceptive pill , even if you're not sexually active. This combined pill can often help improve acne in women, but may take up to a year before the full benefits are seen. Co-cyprindiol is a hormonal treatment that can be used for more severe acne that doesn't respond to antibiotics.
It helps to reduce the production of sebum. Also useful is your comprehensive guide to all of the many types of acne and how to treat each.
And here's a derm-approved low-down on hormonal acne treatments for that time of the month. Your official excuse to add "OOD" ahem, out of doors to your cal. Become an Insider. Enter Email Address. Facebook Pinterest Twitter Youtube Instagram. P imples can be frustrating to treat and cover up, but when they start to ooze or bleed, it takes the frustration to a whole new level. Bleeding zits happen for a number of reasons, but the most common is from picking it which you are most definitely not supposed to do.
It is bad to pop whiteheads because the bacteria will make the infection worse. It is better for that infection to be contained in one area. Wash your skin twice a day with a mild soap, using your fingers. A brush or a washcloth might cause unnecessary roughness on your skin.
Look for over-the-counter products that come with benzoyl peroxide or salicylic acid. If you have already popped a pimple, follow these simple steps to heal the wound. Rinse the area, compress the wound with a warm cloth. Apply cream and keep the wound moist. Do you have a health question for Dr. See it: Dr. Pimple Popper's most epic extractions, why a splash mask is necessary Learn what Dr.
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