SKIN INFECTIONS

Impetigo is a superficial skin infection usually caused by S.aureus and occasionally by S. pyogenes.
Impetigo affects approximately 1 % of children.
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Folliculitis is a superficial infection of the hair follicles characterized by erythematous, follicular-based papules and pustules. Furuncles are deeper infections of the hair follicle characterized by inflammatory nodules with pustular drainage, which can coalesce to form larger draining nodules. The prevalence of folliculitis is unknown.
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Ecthyma is a deep infection of the skin that resembles impetigo. Ecthyma is somewhat common in patients with poor hygiene or malnutrition, or both.
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Erysipelas is a superficial streptococcal infection of the skin. Cellulitis is a deeper process that extends to the subcutis. Erysipelas has a predilection for young children and the elderly.
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Necrotizing fasciitis is a rare infection of the subcutaneous tissues and fascia that eventually leads to necrosis.
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Cutaneous candidiasis is a yeast infection caused primarily by Candida albicans. Infection is common in immunocompromised patients, diabetics, the elderly, and patients receiving antibiotics.
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Tinea versicolor is a common superficial infection of the skin caused by the ubiquitous yeast Pityrosporum ovale. Prevalence is high in hot, humid climates.
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Herpes simplex virus (HSV) infection is a painful, self-limited, often recurrent dermatitis, characterized by small grouped vesicles on an erythematous base. Eighty-five percent of the population has antibody evidence of HSV type 1 infection. HSV type 2 infection is responsible for 20% to 50% of genital ulcerations.
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Herpes zoster (shingles) is an acute, painful dermatomal dermatitis that affects approximately 10% to 20% of adults, often in the presence of immunosuppression.

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Warts are common and benign epithelial growths caused by human papillomavirus (HPV). Warts affect approximately 5% of the population.
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HPV infection follows inoculation of the virus into the epidermis through direct contact, usually facilitated by a break in the skin.
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So this is gangrene. it is an infection that occurs when and infection is not taken care of.
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