Nursing care
Impetigo nursing care: what to assess and what to do first
Written and reviewed by Dana Whitfield, RN, MSN · 4 min read · Updated September 2026
Short answer
Impetigo is a highly contagious superficial bacterial skin infection, usually caused by Staphylococcus aureus or Streptococcus pyogenes, marked by honey-coloured crusted lesions around the nose and mouth. Nursing care focuses on topical or oral antibiotics, strict hygiene to stop spread, and keeping the child home from school until 24 hours of treatment has passed.
The clinical picture
A child, most often between two and five years old, presents with red sores that quickly rupture and dry into a distinctive honey-coloured, crusted plaque, typically clustered around the nose, mouth, or on the extremities where minor skin breaks let bacteria in. The lesions are often itchy but not usually painful, and the child is otherwise well, without fever in most uncomplicated cases.
Impetigo comes in two forms: non-bullous, which is far more common and produces the classic honey-crusted lesions, and bullous, which produces larger fluid-filled blisters that rupture to leave a thin varnish-like crust. Both spread easily through direct contact and through shared items like towels, and outbreaks move quickly through daycare and school settings where children are in close contact.
Assessment: what to look for and in what order
Inspect the skin first, noting lesion location, the honey-coloured crust appearance, and whether it's clustered around the nares and mouth, which is the classic distribution. Check for satellite lesions elsewhere on the body from the child scratching and spreading bacteria to new sites.
Take a history of recent skin trauma such as insect bites, eczema flares, or minor cuts, since broken skin is the usual entry point. Ask about exposure to other affected children at daycare or school. Assess for signs the infection has moved beyond superficial skin: fever, spreading redness, or lymph node swelling can indicate cellulitis or a deeper spread requiring a different treatment path. Confirm whether a swab or culture has been taken, particularly if lesions are extensive or not responding to first-line treatment.
Immediate interventions
Begin or reinforce the prescribed antibiotic regimen, which for localised impetigo is usually a topical agent such as mupirocin, and for more extensive or bullous cases an oral antibiotic. Teach clean application technique: gently soak and remove crusts before applying topical medication so it reaches the skin rather than sitting on top of dried debris.
Isolate the child from close contact with other children until 24 hours of antibiotic treatment has passed, since this is the point at which infectivity drops sharply. Advise keeping fingernails trimmed short to reduce the damage from scratching and to limit bacteria carried under the nails to new skin sites.
Ongoing nursing management
Monitor the lesions at each contact for signs of improvement: drying, reduced redness, and no new satellite lesions appearing. Watch for signs the infection is not responding, or is progressing to a more serious complication, and escalate promptly if fever develops or redness spreads beyond the original lesion borders.
Reinforce hand hygiene with every interaction, both for the child and for caregivers handling dressings or applying topical medication. Track completion of the full antibiotic course, since stopping early because the skin looks better invites relapse and contributes to resistance. Rare but recognised complications include post-streptococcal glomerulonephritis, so be alert to any report of dark urine or facial swelling in the weeks following a streptococcal skin infection.
Patient and family education
Tell families plainly: impetigo spreads fast through skin contact and shared items, so the child needs their own towel, washcloth, and pillowcase for the duration of treatment, washed separately in hot water. Fingernails should stay short and hands washed frequently to limit spread to siblings and to new sites on the child's own skin.
Set a clear return-to-school rule: the child stays home until 24 hours of antibiotic therapy have been completed, not until the lesions look fully healed, which can take longer. Explain how to apply topical medication correctly, including washing hands before and after, and stress finishing the entire prescribed course even once the skin clears. Cover the lesions with light dressings if the child is likely to scratch or if lesions are on exposed skin at school.
How this appears on the NCLEX
Expect a question describing honey-coloured crusted lesions on a young child's face, asking you to identify the condition or the priority nursing action. The exam will often test the 24-hour rule directly: recognising that a child can return to school or daycare 24 hours after starting antibiotics, not once lesions have fully resolved.
You may also be tested on infection control principles applied to a household with multiple children: separate linens, short nails, and hand hygiene as the core preventive measures rather than isolation of the entire household. A question may also ask you to distinguish impetigo from other pediatric rashes by its honey-coloured crust, a detail worth memorising precisely because it's the differentiating feature examiners rely on.
The next step on this is the same as on everything else here: answer questions and read the rationales. Our pediatrics practice questions are the closest set to what this page covers.
Common questions
How long is impetigo contagious?
It's contagious until roughly 24 hours after starting effective antibiotic treatment, or until the lesions have fully healed if untreated. Children should stay home from school or daycare until that 24-hour mark has passed.
What causes the honey-coloured crust in impetigo?
The crust forms when the fluid from ruptured superficial blisters or pustules dries on the skin surface. It's the signature finding that distinguishes impetigo from other childhood rashes on inspection alone.
Can impetigo be treated without antibiotics?
No, active treatment with topical or oral antibiotics is standard, since impetigo is a bacterial infection that won't reliably resolve with hygiene measures alone. Hygiene steps reduce spread but don't replace the prescribed antibiotic course.
Is impetigo the same in adults as in children?
Impetigo can occur at any age but is most common in young children, particularly those two to five years old. The presentation and treatment principles are the same across ages, though adults may present with lesions in different locations depending on exposure.