1. SKIN & VD 4-2-2013
PYODERMA – SKIN INFECTIONS
IMPETIGO
 Involves only epidermis
 Types: Bullous and non-bullous
 Bullous impetigo caused by S. aureus; non-bullous impetigo caused by S. aureus & group A
Streptococcus.
Clinical features:
 Site of infection: nasal cavity and around mouth.
 Commonly, seen in children.
 Begins as vesicles & pustules. It is bulla in case of bullous impetigo.
 Itching, burning sensation
 The vesicles rupture to give honey coloured crust.
Treatment:
 Topical antibiotics like mupirocin ointment.
 If not cured, oral antibiotics may be required.
ECTHYMA
 Deep infection
 Punched out ulcers
 Surrounding erythema & ulcerations.
 Thick adherent crust, which will bleed when removed.
FOLLICULITIS
 Multiple pustules around hair follicles
 Superficial & deep folliculitis.
FURUNCLE
 Nodular, pus filled; deeper than folliculitis.
CARBUNCLE
 Coalition of multiple furuncles
 Commonly seen in diabetics over the neck region.
 Systemic symptoms like fever may be present.
 Oral antibiotics are given.
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Keshava Pavan