Carbuncle – Definition and Treatment

Definition of Carbuncle Carbuncle – Clusters of infected HAIR follicles (furuncles) that often form an ABSCESS.Carbuncles are most common on the back of the neck and shoulders, though may form at other locations where furuncles tend to occur. Carbuncles are painful and often result in fever and general malaise (not feeling well). The infection is deep within the […]

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Erythrasma – Definition and Treatment

Definition of Erythrasma Erythrasma is a chronic bacterial INFECTION of the epidermis (outer layer of the SKIN) that produces scaly, brownish red patches that often itch. The patches may occur anywhere on the body though are most common in skin folds and moist areas such as the underarm (axilla) and groin. When viewed under ultraviolet light, the areas of […]

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Lichen Planus – Definition, Treatment and Symptoms

Definition of Lichen Planus Lichen Planus – a common condition affecting the SKIN that appears as small, shiny, reddish purple (violaceous) bumps that itch, sometimes intensely. The bumps grow together in a scalelike pattern that resembles tree lichen. Lichen planus nearly always occurs in adults. Symptoms and Diagnostic Path Lichen planus typically erupts on the inner surfaces of the […]

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Prurigo Nodularis – Definition and Treatment

Definition of Prurigo Nodularis Prurigo is a chronic condition in which lesions, typically papules or nodules, that itch intensely erupt on the SKIN. The lesions may occur anywhere on the body, though typically form in locations that allow scratching. Because the cause of prurigo, also called prurigo nodularis, remains unknown, dermatologists do not know whether the lesions develop in […]

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Urticaria – Acute/Chronic – Definition and Treatment

Definition of Urticaria Urticaria is the clinical term for hives, an outbreak of wheals on the SKIN’s surface. Acute urticaria, which comes on suddenly, typically signals a HYPERSENSITIVITY REACTION. The wheals contain fluid the IMMUNE RESPONSE draws from the cells of the skin. They itch, often intensely (PRURITUS), and may appear and recede in various locations on […]

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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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