Cellulitis – Infection Skin – Symptoms and Treatment

Definition of Cellulitis Cellulitis is INFLAMMATION of the inner layers of the SKIN and the underlying connective tissues, usually the result of a bacterial INFECTION. People who have peripheral vascular disease (pvd), diabetes, or other health conditions that impair blood circulation have increased risk for cellulitis. Cellulitis develops when a break in the skin, such as a cut or an insect bite or […]

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Folliculitis – Definition and Treatment

Definition of Folliculitis Folliculitis – An infected and inflamed HAIR follicle. Folliculitis may involve a single follicle or a number of follicles in proximity, and begins with a reddened bump at the site of the follicle that soon progresses to a PUSTULE containing a collection of fluid and cells (pus). The site often hurts or itches. Most folliculitis is idiopathic—that […]

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Lichen Simplex Chronicus – Treatment and Symptoms

Definition of Lichen Simplex Chronicus Lichen Simplex Chronicus – a SKIN condition, sometimes called neurodermatitis, in which an itchy RASH erupts in response to continued scratching of the skin. Over time, the involved areas develop hyperkeratosis, an overgrowth of keratinocytes that gives the areas a scaly, lichen like appearance (plaques). Lichen simplex chronicus sometimes develops in areas of […]

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Pruritus – Itching – Definition, Causes and Treatment

Definition of Pruritus Pruritus – the clinical term for itching, especially itching that engenders the uncontrollable urge to scratch. Pruritus is a symptom of innumerable health conditions and may be localized (confined to a specific area or to lesions) or generalized (widespread, involving much of the SKIN’s surface). The skin may appear reddened (erythema), swollen (edema) or […]

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Vesicle and Definition

Definition of Vesicle Vesicle is a small, blisterlike LESION on the SKIN that contains serous fluid. Vesicles typically occur in clusters and indicate INFECTION, such as with HERPES SIMPLEX VIRUS (HSV), or irritation, such as results from contact with poison ivy. Skin vesicles often hurt or itch. Treatment may include topical medications to relieve discomfort, with oral ANALGESIC MEDICATIONS (PAIN relievers) or ANTIHISTAMINE […]

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Chloasma and Definition and Treatment

Definition of Chloasma Chloasma is a pattern of hyperpigmentation, often temporary, that typically affects the face. Chloasma, also called melasma, develops with elevated blood levels of ESTROGENS, such as occurs during PREGNANCY, with some oral contraceptive (birth control pill) formulations, and in chronic LIVER disease. When the cause is hormonal, the hyperpigmentation fades when hormone levels return to normal. […]

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Frostbite – Definition, Symptoms and Treatment

Definition of Frostbite Frostbite – Damage to the SKIN that results from prolonged exposure to extremely cold temperatures. Frostbite occurs when the fluid in cells crystallizes into ice, causing the skin and often the underlying tissues to freeze. The fingers, hands, toes, feet, NOSE, and ears are most vulnerable to frostbite. People who have impaired peripheral circulation are […]

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Macule – Skin Lesion – Definition and Information

Definition of Macule A small SKIN LESION that is flat, smooth, and discolored. Macules are common and may appear as the presenting symptom for numerous dermatologic and other health conditions. Often the only symptom they present themselves is discoloration, though some macules itch or hurt. The discoloration may be hyperpigmentation (darker than the surrounding skin) or hypopigmentation (lighter than the […]

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Pseudofolliculitis Barbae – Definition and Treatment

Definition of Pseudofolliculitis Barbae and Treatment Pseudofolliculitis Barbae is a condition in which large numbers of the hairs in the beard region on a man’s face grow inward after shaving, causing irritation and INFLAMMATION. Pseudofolliculitis barbae, sometimes called razor RASH or razor bumps, occurs most frequently in men whose facial HAIR is tightly curled, and is particularly common among […]

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Vitiligo Disease – Symptoms, Treatment and Causes

Definition of Vitiligo disease Vitiligo – a condition of hypopigmentation in which melanocytes die in patches of SKIN, leaving macules that are pale and depigmented. Dermatologists believe vitiligo is an autoimmune disorder in which the IMMUNE SYSTEM produces antibodies that attack melanocytes, the skin cells responsible for producing pigment. Vitiligo affects people of all races and ethic backgrounds, though […]

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