Cysts, Lumps, Bumps, and Your Skin
What Are the Symptoms of Folliculitis?
The main lesion in folliculitis is a papule or pustule with a central hair. The hair shaft in the middle of the lesion may not be seen.
Other signs and symptoms include:
- Multiple red pimples and/or pustules on hair-bearing areas of the body
How Is Folliculitis Treated?
Topical antibiotics, oral antibiotics, or antifungal drugs may be used to treat infections associated with folliculitis, depending on the underlying cause. Treatment also involves preventing further damage to the hair follicles. Steps that can help achieve this goal include:
- Minimizing friction from clothing
- Not shaving in the affected area, if possible. If shaving is necessary, use a clean new razor blade or an electric razor each time.
- Keeping the area clean
Keratoacanthoma and Your Skin
A keratoancanthoma occurs when cells in a hair follicle do not grow normally. The growth may be triggered by a minor skin injury in an area that previously had suffered sun damage. Ultraviolet radiation from sun exposure is the biggest risk factor in keratoacanthomas.
A keratoacanthoma usually will appear on sun-damaged skin as a thick growth that has a central crusted plug.
Keratoacanthomas appear most often in people who are over the age of 60 and they are considered a low-grade skin cancer.
What Are the Symptoms of a Keratoacanthoma?
Keratoacanthomas are rapidly growing, red, dome-shaped bumps with central craters. Some keratoacanthomas can grow to extremely large sizes, occasionally 1 to 3 inches in diameter.
How Are Keratoacanthomas Treated?
Keratoacanthomas can be removed by:
- Cryotherapy (freezing the growth with liquid nitrogen)
- Curettage (scraping and burning off the growth)
- Surgical removal
- Injection of a cancer drug directly into the lesion
Keratosis Pilaris and Your Skin
Keratosis pilaris (commonly called KP) appears as "chicken skin bumps" on the skin. These bumps usually appear on the upper arms and thighs. They also can appear on the cheeks, back, and buttocks. Keratosis pilaris, while unattractive, is harmless.
What Are the Symptoms of Keratosis Pilaris?
This disorder appears as small, rough bumps. The bumps are usually white or red, but do not itch or hurt. Keratosis pilaris is usually worse during the winter months or other times of low humidity when skin becomes dry. It also may worsen during pregnancy or after childbirth.