Infectious, Parasitic & Vector Disorders

Folliculitis

Superficial inflammation of individual hair follicles.

Furuncle (Boil)

A deep, painful, pus-filled nodule involving a hair follicle.

Carbuncle

A cluster of interconnected furuncles extending into subcutaneous tissue.

Cellulitis

Acute spreading infection of the dermis and subcutaneous tissue causing erythema, warmth, and edema.

Impetigo

Contagious infection producing fragile vesicles that form honey-colored crusted lesions.

Erysipelas

Superficial cellulitis characterized by raised, sharply defined bright red borders.

Herpes Simplex Virus (HSV-1 / HSV-2)

Grouped painful vesicles on an erythematous base that remain latent in sensory nerve ganglia.

Molluscum Contagiosum

Contagious poxvirus causing small, firm, dome-shaped papules with a central umbilication.

Tinea Capitis Manifestations

Scaly patches of hair loss, broken hair shafts, and sometimes an inflammatory kerion.

Tinea Capitis Treatment

Oral systemic antifungal therapy for 4-8 weeks plus adjunctive medicated shampoos.

Tinea Corporis Manifestations

Annular scaly plaques with a raised, active, erythematous border and central clearing.

Tinea Corporis Treatment

Topical antifungals applied for 2-4 weeks.

Scabies Manifestations

Intense nocturnal pruritus with linear burrows, papules, and vesicles in web spaces and wrists.

Scabies Treatment

Topical Permethrin 5% cream, simultaneous household treatment, and hot-heat laundry.

Pediculosis (Lice) Manifestations

Intense scalp itching and visible oval nits firmly cemented to hair shafts.

Pediculosis Treatment

Topical Permethrin 1% lotion with mechanical nit removal, repeated in 7-9 days.

Flea Bites Manifestations

Pruritic small red papules with a central puncture located predominantly on lower legs and ankles.

Flea Bites Treatment

Topical hydrocortisone, oral antihistamines, pet parasiticides, and thorough vacuuming.

Bed Bug Bites Manifestations

Pruritic red papules or wheals occurring in a classic linear track or zigzag pattern.

Bed Bug Treatment

Topical antipruritics, oral antihistamines, professional pest control, and heat-drying bedding.