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Folliculitis - Rosacea Mimic

Histopathology of granulomatous folliculitis, image courtesy of Wikimedia Commons

Folliculitis is "the infection and inflammation of one or more hair follicles." [1]  A google image search shows some photos that mimic rosacea.

"Folliculitis is a common skin condition in which hair follicles become inflamed. It's usually caused by a bacterial or fungal infection." [2]

"Folliculitis is most often caused by an infection of hair follicles with Staphylococcus aureus (staph) bacteria. Folliculitis may also be caused by viruses, fungi and even an inflammation from ingrown hairs." [2]

"Folliculitis can appear anywhere on the skin, except for our palms and soles." [3] "You have hair follicles just about everywhere except your lips, your palms, and the soles of your feet. Folliculitis can make these hair follicles red and swollen." [4]

"Usually there is some itch, sometimes a little soreness. Folliculitis looks like acne pimples or non-healing, crusty sores." [5]

What does folliculitis look like? Google image search

It looks like acne [3] [4] (a rosacea mimic), so it is to be differentiated from the long list of skin conditions that appear with erythema and pimples. However, your folliculitis may be simply related to your rosacea or SD issues. If around your mouth it may be referred to as Perioral Demodex folliculitis. There are various types of folliculitis: 

Bacterial folliculitis [2]
Barber’s itch [4]
Boils (furuncles) and carbuncles [2] [4]
Deep folliculitis [4]
Eosinophilic folliculitis [2] [4]
Gram-negative folliculitis [2] [4]
Hot tub folliculitis (pseudomonas folliculitis) [2] [3]
Perioral Demodex Folliculitis
Pseudo folliculitis or razor bumps (pseudofolliculitis barbae) [2] [3]
Pityrosporum folliculitis [2]
Shaving rash [4]
Superficial folliculitis [4]
Sycosis barbae [2] [4]

Dr. Reagan Anderson, a board certified dermatologist and Mohs Micrographic Surgeon explains folliculitis and what to do about it. 

Found this interesting reddit you may want to check out

Pruritis and Rosacea

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End Notes 

[1] Folliculitis, Wikipedia

[2] Folliculitis, Mayo Clinic


[4] Folliculitis, WebMD

[5] Folliculitis, AOCD

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