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Folliculitis is the infection and inflammation of one or more hair follicles. The condition may occur anywhere on hair-covered skin . The rash may appear as pimples that come to white tips on the face, chest, back, arms, legs, buttocks, or head.
Fox–Fordyce Disease can be a rare side effect of laser hair removal, particularly in areas like the armpits and bikini line, where apocrine sweat glands are concentrated. While lasers, such as the Alex/Diode type, target hair follicles, they can accidentally damage nearby sweat glands, causing them to become blocked and leading to FFD.
Boils are bumpy, red, pus-filled lumps around a hair follicle that are tender, warm, and painful. They range from pea-sized to golf ball-sized. A yellow or white point at the center of the lump can be seen when the boil is ready to drain or discharge pus. In a severe infection, an individual may experience fever, swollen lymph nodes, and ...
Scalp folliculitis is caused when microorganisms enter the hair follicles through tiny cuts, abrasions, or via the sebaceous glands. Scalp folliculitis can be caused by a few factors, including:
Irritant folliculitis is an inflammation of the hair follicle. [1] It characteristically presents with small red bumps in the skin at sites of occlusion , pressure, friction, or hair removal ; typically around the beard area in males, pubic area and lower legs of females, or generally the inner thighs and bottom.
Apocrine and eccrine sweat glands secondarily involved. Yu & Cook [90] 1990: Cysts and sinus tracts lined with epithelium, in part with hair shafts. Inflammation of apocrine sweat glands only if eccrine sweat glands and hair follicles are also inflamed. Boer & Weltevreden [91] 1996: Primary inflammation of the follicular infundibulum.
Eosinophilic folliculitis may be suspected clinically when an individual with HIV exhibits the classic symptoms. The diagnosis can be supported by the finding of eosinophilia but a skin biopsy is necessary to establish it. Skin biopsies reveal lymphocytic and eosinophilic inflammation around the hair follicles.
Tufted folliculitis presents with doll's hair-like bundling of follicular units, and is seen in a wide range of scarring conditions including chronic staphylococcal infection, chronic lupus erythematosus, lichen planopilaris, Graham-Little syndrome, folliculitis decalvans, acne keloidalis nuchae, immunobullous disorders, and dissecting cellulitis.