Acne keloidalis nuchae (also known as "acne keloidalis", "dermatitis papillaris capillitii", "folliculitis keloidalis", "folliculitis keloidis nuchae", and "nuchal keloid acne": 526 ) is a destructive scarring folliculitis that occurs almost exclusively on the occipital scalp of people of African descent, primarily men.AKN is characterized by firm pink or flesh-colored hyperpigmented bumps in the skin, which are usually located on the back of the neck. This is mainly because men often cut their hair very low as opposed to women, allowing the hair to prick the occipital scalp thereby causing irritation. Acne keloidalis nuchae most commonly presents itself in individuals aged 13 to 25. The disease is closely related to pseudofolliculitis barbae and both occur frequently in black men in the military, where it is so common that the US Army has developed official protocols for management. Prolonged cases of AKN can cause keloid formation due to chronic irritation from folliculitis. Bacterial folliculitis and acne can mimic the appearance of AKN; however, unlike acne, comedones are not seen with AKN. Treatments for AKN aim to reduce inflammation and prevent infections and scarring. Therapies for AKN may include topical antibiotics, topical or intralesional corticosteroids, and laser hair removal. Recommended modifications to shaving habits include liberal use of shaving cream, avoidance of stretching the skin while shaving, and use of a single-blade razor rather than a razor with multiple blades. See also
List of cutaneous conditions

References


== External links ==
Conjunctivitis, also known as pink eye, is inflammation of the outermost layer of the white part of the eye and the inner surface of the eyelid. It makes the eye appear pink or reddish. Pain, burning, scratchiness, or itchiness may occur. The affected eye may have increased tears or be "stuck shut" in the morning. Swelling of the white part of the eye may also occur. Itching is more common in cases due to allergies. Conjunctivitis can affect one or both eyes.The most common infectious causes are viral followed by bacterial. The viral infection may occur along with other symptoms of a common cold. Both viral and bacterial cases are easily spread between people. Allergies to pollen or animal hair are also a common cause. Diagnosis is often based on signs and symptoms. Occasionally, a sample of the discharge is sent for culture.Prevention is partly by handwashing. Treatment depends on the underlying cause. In the majority of viral cases, there is no specific treatment. Most cases due to a bacterial infection also resolve without treatment; however, antibiotics can shorten the illness. People who wear contact lenses and those whose infection is caused by gonorrhea or chlamydia should be treated. Allergic cases can be treated with antihistamines or mast cell inhibitor drops.About 3 to 6 million people get conjunctivitis each year in the United States. In adults, viral causes are more common, while in children, bacterial causes are more common. Typically, people get better in one or two weeks.