miércoles, 5 de septiembre de 2012

Acne

Today we are going to talk about acne, it's causes and how to treat it, I hope you enjoy today's update...

 

What Is Acne?

There's a reason it's called "common acne" -- nearly everyone suffers from pimple outbreak at some point in life.
It starts when greasy secretions from the skin's sebaceous glands plug the tiny openings for hair follicles (plugged pores). If the openings are large, the clogs take the form of blackheads: small, flat spots with dark centers. If the openings stay small, the clogs take the form of whiteheads: small, flesh-colored bumps. Both types of plugged pores can develop into swollen, tender inflammations or pimples or deeper lumps or nodules. Nodules associated with severe cases of acne (cystic acne) are firm swellings below the skin's surface that become inflamed and sometimes infected.

Although acne remains largely a curse of adolescence, about 20% of all cases occur in adults. Acne commonly starts during puberty between the ages of 10 and 13 and tends to be worse in people with oily skin. Teenage acne usually lasts for five to 10 years, normally going away during the early 20s. It occurs in both sexes, although teenage boys tend to have the most severe cases. Women are more likely than men to have mild to moderate forms into their 30s and beyond.
Acne lesions are most common on the face, but they can also occur on the neck, chest, back, shoulders, and upper arms.

Contrary to popular belief, acne isn't caused by a harmful diet, poor hygiene, or an uncontrolled sex drive. The simple truth is that heredity and hormones are behind most forms of acne. Swearing off chocolate or scrubbing your face 10 times a day won't change your predisposition to this unsightly, sometimes painful, and often embarrassing skin problem.


What Causes Acne?

The cause of acne is not fully understood. Though stress can aggravate acne, it clearly does not cause it.

- Hormones. Common acne in teenagers starts with an increase in hormone production. During puberty, both boys and girls produce high levels of androgens, the male sex hormones that include testosterone. Testosterone signals the body to make more sebum, the oil produced in the skin's oil glands.

- Bacteria. Excess sebum clogs the openings to hair follicles -- especially those on the face, neck, chest, and back. Bacteria grow in these clogged follicles. This makes blackheads or whiteheads form on the skin's surface -- a condition called non-inflammatory acne. Sometimes this clogging causes the follicle wall to break under the pressure of this buildup. When this happens, sebum leaks into nearby tissues and forms a pustule -- this is called inflammatory acne. Larger, tender pustules are called nodules.



Depending on the type of pill, oral contraceptives may trigger acne in some women but suppress it in others. Some injectable contraceptives and hormonal devices may also cause acne. Steroids taken by some bodybuilders and other athletes can also lead to severe outbreaks.
Acne has many subtypes. Acne neonatorum and acne infantum occasionally affect newborns and infants, usually boys. A pimply rash appears on the face but usually clears within weeks with no lasting effect. People who escaped their teen years almost pimple free may develop persistent adult-onset acne as they get older.




Despite the normal increase in androgen levels during puberty, some doctors believe that flare-ups of acne have less to do with androgen levels than with how a person's skin responds to an increase in sebum production. The bacteria Propionibacterium acnes occurs naturally in healthy hair follicles. If too many of them accumulate in plugged follicles, they may secrete enzymes that break down sebum and cause inflammation. Some people are simply more sensitive than others to this reaction. Sebum levels that might cause a pimple or two in one person may result in widespread outbreaks -- or even acute cystic acne -- in another person.

Well is all for today, See u guys soon!!!  And don't forget to leave you comments...


lunes, 3 de septiembre de 2012

Chronic Skin Conditions (Psoriasis)

Hi everyone, I'm back with a new update about chronic skin conditions, I hope you find it interesting.

Psoriasis

Psoriasis is a common skin disorder that produces thick red plaques covered with silvery scales. The most common areas affected are the scalp, elbows, knees, and lower back, although any skin surface may be involved. It can also occur in the nails and body folds.
Psoriasis is not contagious and cannot be passed from person to person, but it can occur in members of the same family.
Psoriasis usually begins in early adulthood or later in life. In most people, the rash is limited to a few areas of skin; in severe cases, it can cover large areas of the body. The rash can heal and come back throughout a person's life.



What Are the Symptoms of Psoriasis?

Psoriasis starts as small red bumps, which enlarge and become scaly. The skin appears thick, but may bleed easily if the scales are picked or rubbed off.
In addition, the rash may produce:
  • Itching
  • Pitted, cracked, crumbly, or loose nails

How Can I Find Out if I Have Psoriasis?

If you have a rash that is not healing, contact your doctor. He or she can evaluate the rash to determine if it is psoriasis.

What Causes Psoriasis?

The exact cause of psoriasis is unknown, but it is believed that a combination of factors contributes to the development of the disease. An abnormality in the immune system causes inflammation in the skin, triggering new skin cells to develop too quickly. Normally, skin cells are replaced every 28 to 30 days. With psoriasis, new cells grow and move to the surface of the skin every three to four days. The buildup of old cells being replaced by new cells creates the silver scales of psoriasis.


What Causes Psoriasis Outbreaks?

No one knows what causes psoriasis outbreaks. The severity and frequency of outbreaks vary with each person. Outbreaks may be triggered by:
  • Skin injury (for example, cuts, scrapes, or surgery)
  • Emotional stress
  • Strep infections

How Is Psoriasis Treated?

There are many treatments for psoriasis. Some treatments slow the production of new skin cells, while others relieve itching and dry skin. Your doctor will select a treatment plan that is right for you based on the extent of your rash, where it is on your body, your age, health, and other factors. Common treatments include:
  • Steroid creams
  • Moisturizers (to relieve dry skin)
  • Coal tar (a common treatment for scalp psoriasis; it may also be used with light therapy for severe cases; available in lotions, shampoos, and bath solutions)
  • Vitamin D cream (a special form that is ordered by your doctor; Vitamin D in foods and vitamin pills have no effect on psoriasis)
  • Retinoid creams 

Treatment for moderate-to-severe cases of psoriasis includes:
  • Light therapy. Ultraviolet light is used to slow the production of skin cells, and is administered under a doctor's care. PUVA is a treatment that combines a medicine called psoralen with exposure to a special form of ultraviolet light.
  • Methotrexate. This oral drug can cause liver disease and lung problems, so its use is limited to severe cases of psoriasis and people taking this medication are carefully monitored with blood tests. Chest X-rays and occasional liver biopsies may also be needed.
  • Retinoids. A class of drugs related to Vitamin A, they can be used in cream or gel forms and pills to treat psoriasis. Retinoids can cause serious side effects, including birth defects; therefore, retinoids are not recommended for women who are pregnant or planning to have children.
  • Cyclosporine. This immunosuppressant drug may be used for very severe psoriasis that has not responded to other treatments. Because it can damage the kidneys and raise blood pressure, regular monitoring is needed.
  • Biologic therapies. Newer drugs for treating psoriasis include Amevive, Humira, and Enbrel. All of these are given by injection and work by blocking the body's immune system from "kick-starting" an autoimmune disease such as psoriasis. A similar drug, Remicade, is given by IV on a regular basis.

 Psoriasis cannot be cured, but treatment greatly reduces signs and symptoms, even in severe cases.

Well this is all for today, what do you think??? Don't forget to leave your comments... See u soon!!!