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Folliculitis

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Medical Author:

Nili N. Alai, MD, FAAD

Nili N. Alai, MD, FAAD

Dr. Alai is an actively practicing medical and surgical dermatologist in south Orange County, California. She has been a professor of dermatology and family medicine at the University of California, Irvine since 2000. She is U.S. board-certified in dermatology, a 10-year-certified fellow of the American Academy of Dermatology, and Fellow of the American Society of Mohs Surgery.

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Medical Editor:

William C. Shiel Jr., MD, FACP, FACR

William C. Shiel Jr., MD, FACP, FACR

Dr. Shiel received a Bachelor of Science degree with honors from the University of Notre Dame. There he was involved in research in radiation biology and received the Huisking Scholarship. After graduating from St. Louis University School of Medicine, he completed his Internal Medicine residency and Rheumatology fellowship at the University of California, Irvine. He is board-certified in Internal Medicine and Rheumatology.

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What is folliculitis? What are folliculitis symptoms? What does folliculitis look like?

Folliculitis is a common skin condition that appears as numerous small red or pink little bumps at hair follicles. It can cause a "chicken skin" appearance on the skin. Folliculitis can affect any part of the skin, including the chest, back, arms, legs, buttocks, and cheeks. Often, 10-100 very small, slightly smooth bumps are scattered in a body area like the back. Some of the bumps may be slightly red or have an accompanying light-red halo indicating inflammation. Sometimes, scratching off the top reveals a small trapped or coiled hair within. Acne whiteheads, called milia, may also be in the same areas as folliculitis. Although folliculitis is primarily a skin condition of teenagers and younger adults, it is also seen in all ages.

In general, folliculitis is often cosmetically displeasing and otherwise medically harmless. Many cases of folliculitis may resolve spontaneously without any treatment. Folliculitis frequently affects otherwise healthy people. Treatment may typically include one or a combination of antibacterial washes, antibiotic creams or lotions, and antibiotic pills.

Who develops folliculitis?

Anyone can develop folliculitis wherever hair follicles are present on the body. The lesions in folliculitis most frequently involve the chest, back, and legs. Other common locations include the face, neck, thighs and buttocks. Although possible, it is rare to have it widespread all over the body. It does not affect the eyes, mouth, palms, or soles, where there are no hair follicles. Folliculitis is estimated to affect more 10%-20% of people at some point in their lives.

Certain groups of people are more prone to develop folliculitis. People with diabetes and those with a compromised immune system (such as from HIV/AIDS, hepatitis, chronic illnesses, cancer, systemic chemotherapy, immune-suppressing drugs) may be more prone to develop folliculitis.