A 6-year-old girl presents with multiple honey-crusted lesions scattered over both arms, legs, and trunk for 10 days. Mother reports poor hygiene and the child attends a crowded school. Lesions are non-bullous, painless, and some show early signs of crusting. Temperature is 37.2°C. On examination, there is mild cervical lymphadenopathy but no cellulitis. What is the most appropriate next step in management?

Question

Accepted Answer

B. Topical mupirocin 2% to all lesions TDS for 7 days. ## Clinical Assessment

**Key Point:** This patient has **non-bullous impetigo** with lesions on multiple body sites. However, the clinical picture — no fever (37.2°C is normal), no cellulitis, only mild cervical lymphadenopathy (reactive, not suppurative), and no systemic toxicity — does not mandate oral antibiotics. Current evidence-based guidelines (AAP, IDSA, British Association of Dermatology) recommend **topical mupirocin 2% as first-line therapy** for non-bullous impetigo regardless of the number of lesions, unless there is systemic involvement or treatment failure.

## Impetigo Management Algorithm

```
Non-bullous impetigo
        |
        ├── No systemic signs (no fever, no cellulitis, no toxicity)
        |         → Topical mupirocin 2% TDS × 5–7 days ✔
        |
        ├── Systemic signs / extensive involvement / immunocompromised
        |         → Oral antibiotic (cephalexin or cloxacillin)
        |
        └── Hospitalization / IV antibiotics
                  → Only for sepsis, SSSS, or severe cellulitis
```

## Why Topical Mupirocin Alone is Correct

**High-Yield:** The IDSA 2014 guidelines and multiple RCTs (Koning et al., Cochrane 2012) demonstrate:
- **Topical mupirocin is equivalent to oral antibiotics** for non-bullous impetigo without systemic signs.
- Adding oral antibiotics to topical therapy does not improve cure rates in uncomplicated cases and increases antibiotic resistance risk.
- The presence of lesions on multiple body sites alone does NOT constitute an indication for oral antibiotics in the absence of systemic toxicity, cellulitis, or immunocompromise.

**Clinical Pearl:** Mild cervical lymphadenopathy is a **reactive finding** commonly seen with impetigo and does NOT indicate systemic infection requiring oral antibiotics. It resolves with successful topical treatment.

## Why Other Options Are Incorrect

| Option | Reason Incorrect |
|---|---|
| **B) Oral cephalexin + topical mupirocin** | Combination not superior to topical alone in uncomplicated non-bullous impetigo; over-treatment |
| **C) Oral cloxacillin alone** | Topical therapy preferred; monotherapy without topical mupirocin is suboptimal |
| **D) IV antibiotics / hospitalization** | No systemic toxicity, no SSSS, no sepsis — hospitalization not indicated |

## Topical Mupirocin Regimen

- **Mupirocin 2% ointment** applied TDS (three times daily) to all lesions
- Duration: **5–7 days**
- Gently remove crusts with warm water before application to improve penetration
- Advise hand hygiene and avoid sharing towels/clothing to prevent school transmission

**Reference:** IDSA Clinical Practice Guidelines for Skin and Soft Tissue Infections (Stevens et al., CID 2014); Fitzpatrick's Dermatology, 9th edition.

![Impetigo and Staphylococcal Skin Infections diagram](https://mmcphlazjonnzmdysowq.supabase.co/storage/v1/object/public/blog-images/explanation/3463.webp)

Answer

A. Oral cephalexin 500 mg QID for 7 days plus topical mupirocin

Answer

C. Oral cloxacillin 500 mg QID for 7 days alone

Answer

D. Refer for hospitalization and IV antibiotics

Explanation

Clinical Assessment

Impetigo Management Algorithm

Why Topical Mupirocin Alone is Correct

Why Other Options Are Incorrect

Topical Mupirocin Regimen

Practice similar questions

Join our NEET PG community

Option	Reason Incorrect
B) Oral cephalexin + topical mupirocin	Combination not superior to topical alone in uncomplicated non-bullous impetigo; over-treatment
C) Oral cloxacillin alone	Topical therapy preferred; monotherapy without topical mupirocin is suboptimal
D) IV antibiotics / hospitalization	No systemic toxicity, no SSSS, no sepsis — hospitalization not indicated