Impetigo

Question 1

Etiology

Answer 1

S.aureus, GAS

S. aureus: Methicillin-sensitive (MSSA)
and methicillin-resistant (MRSA). Bullous impetigo:Localproductiono epidermolytic toxin A–producing S. aureus, which
also causes staphylococcal scalded skin syndrome.
■ Beta-hemolytic streptococcus: group A

Question 2

Clinical manifestation

Answer 2

Honey colored crusted erosions

Question 3

What occurs in children more.

Primary or secondary infection?

Answer 3

Primary

Question 4

Manifestation of bullous impetigo and ecthyma?

Answer 4

BULLOUS IMPETIGO Superficial blisters containing clear yellow or slightly turbid fluid with erythematous halo, arising on normal- appearing skin. Bullous lesions rupture easily, revealing shallow moist areas

Distribution: More common in intertriginous sites.

ECTHYMA Ulceration with a thick adherent crust
. Lesions may be tender, indurated. Usually occurs at occluded sites

Question 5

Treatment

Answer 5

PREVENTION Benzoyl peroxide wash.Check family members for signs of impetigo.
Ethanol or isopropyl gel or hands and/or involved sites.

TOPICALTREATMENT Mupirocin and retapamulin ointment for S. aureus from the nares and cutaneous lesions.

SYSTEMIC ANTIMICROBIAL TREATMENT According to sensitivity of isolated organism