General Information
DEFINITION--A skin disorder characterized by nodules in the armpit.
BODY PARTS INVOLVED--Armpits. It appears rarely on buttocks, groin or under
breasts.
SEX OR AGE MOST AFFECTED--Both sexes, but more common in females (13 to 16
years).
SIGNS & SYMPTOMS--
CAUSES--Hormonal influences that activate the apocrine glands under the arms.
Secretions in these glands enlarge the gland. The outlets become blocked, probably by
heat, sweat or incomplete gland development. The secretions that are dammed in the glands
force sweat and bacteria into surrounding tissue, which becomes infected.
RISK INCREASES WITH
- Obesity.
- Exposure to environmental heat and moisture.
- Genetic factors. This disorder is most common in black females.
HOW TO PREVENT--No specific preventive measures.
What To Expect
DIAGNOSTIC MEASURES--
- Your own observation of symptoms.
- Medical history and physical exam by a doctor.
- Laboratory culture of the discharge from the draining abscess.
APPROPRIATE HEALTH CARE
- Self-care after diagnosis.
- Doctor's treatment.
- Surgery to open and drain abscesses or to remove involved skin (severe cases only).
POSSIBLE COMPLICATIONS--Scarring.
PROBABLE OUTCOME--This disorder may last many years--from puberty through the
following 10 to 20 years. Symptoms can be controlled with treatment.
How To Treat
GENERAL MEASURES--
- Don't use commercial underarm deodorants.
- Minimize heat and sweating.
- Avoid constrictive clothing and clothing made of synthetic fibers.
- Lose weight, if you are overweight.
- Wash with antibacterial soaps.
- Use soaks (see Soaks in Appendix) to relieve itching and hasten healing. Warm-water
soaks are usually more soothing for pain or inflammation. Cool-water soaks feel better for
itching.
MEDICATION--
- Your doctor may prescribe: Injection of cortisone drugs directly into the lesions.
Antibiotics to fight infection. Hormones to help subdue inflammation. Isotretinoin (has
been effective in some patients). This is a potent drug and must be given under doctor's
supervision.
- For minor discomfort, you may use non-prescription drugs such as acetaminophen.
ACTIVITY--Restrict your activity in hot weather and avoid hot jobs if possible.
Swimming is excellent.
DIET--No special diet unless you need to lose weight. Obesity is a main risk
factor for this disorder. See Weight-Loss Diet in Appendix.
Call Your Doctor If
- You have symptoms of hidradenitis suppurativa.
- Lesions don't improve after 5 days of treatment.
- Your temperature rises to 101F (38.3C).
- Lesions appear that become soft and seem to have pus, but don't drain spontaneously.
- New, unexplained symptoms develop. Drugs used in treatment may produce side effects.
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