Common Childhood Rashes: Eczema, Hand-Foot-Mouth, and Viral Exanthems
Skin rashes are one of the most common presenting complaints in primary care. This article will describe the morphology, clinical presentation and management of some common skin rashes seen in children including; Atopic Dermatitis (eczema), Hand-Foot-and-Mouth Disease (Coxsackievirus), Roseola infantum, Erythema Infectiosum (Fifth Disease) and blanching petechiae/purpura.
Hands-free audio narration
This educational guide is researched in accordance with our Editorial Policy and public health guidelines. It is not personal medical advice. For clinical questions, read our Medical Disclaimer or consult a qualified healthcare provider.
Quick Summary & Key Findings
Common rashes include chronic allergic skin barrier dysfunction (Atopic Dermatitis) and self-resolving viral rashes (Hand-Foot-Mouth/Roseola/Fifth Disease). The Glass Tumbler Test should be performed to check if the rash is blanching. If there is any non-blanching purple/red rash present with a fever, they must receive emergency medical attention.
Skin eruptions are a common and often concerning issue in both paediatrics and primary care due to the thin and more permeable nature of the skin barrier in infants/paediatric patients. The skin barrier is also very dynamic in children.
Skin eruptions can range from chronic eczematous disease caused by genetic mutations in the filaggrin gene to acute viral infections such as those caused by Coxsackievirus, Human Herpesvirus-6 (HHV-6) and Parvovirus B19.
Correct diagnosis can be achieved by examining the morphology of the eruption (macules, papules, vesicles, plaques), its distribution, any associated prodromal symptoms and if it blanches.
Dermatological Morphology & The 'Glass Test'
Clinical Comparison of Common Pediatric Rashes
| Rash Condition | Primary Etiology / Cause | Characteristic Visual Appearance | Clinical Management & Care |
|---|---|---|---|
| Atopic Dermatitis (Eczema) | Skin barrier defect (Filaggrin deficiency) + Th2 immune hyper-reactivity. | Dry, erythematous, intensely itchy patches; lichenification from scratching. | Soak-and-seal baths, thick ceramide moisturizers, topical corticosteroids during active flares. |
| Hand-Foot-and-Mouth Disease | Coxsackievirus A16 and Enterovirus A71. | Small gray vesicles and red papules on palms, soles, buttocks; painful mouth ulcers. | Supportive care: Cold popsicles, hydration, weight-based analgesics (Tylenol/Motrin). Resolves in 7–10 days. |
| Roseola (Sixth Disease) | Human Herpesvirus-6 (HHV-6). | High fever (103–104°F) for 3–5 days, then fever breaks and fine pink macules appear on chest/abdomen. | Supportive care during febrile phase. Rash is non-pruritic and fades within 48 hours without treatment. |
| Fifth Disease ('Slapped Cheek') | Parvovirus B19. | Bright confluent red erythema on cheeks, followed by a lacy, reticulated rash on limbs. | Supportive care. Child is no longer contagious once the rash appears. Avoid contact with pregnant women. |
| Scarlet Fever | Group A Streptococcus pyogenes (Pyrogenic exotoxin). | Diffusely erythematous, fine 'sandpaper' texture rash; strawberry tongue. | Mandatory oral Amoxicillin antibiotic therapy to prevent rheumatic fever and kidney complications. |
The 'Soak and Seal' Atopic Eczema Protocol
Epidermal Barrier Breakdown (Filaggrin), Viral Exanthems & Clinical Morphology
The 'Glass Tumbler' Blanching Test, Petechiae Red Flags & Eczema Soak-and-Seal
Frequently Asked Questions
Dr. Rommel Tickoo, MBBS, MD
Director, Internal Medicine & Infectious Diseases, Max Super Speciality Hospital, Saket • MBBS, MD (Internal Medicine)Dr. Rommel Tickoo is the Director of Internal Medicine at Max Super Speciality Hospital, Saket, New Delhi. With over 24 years of experience in adult primary care, infectious disease management, routine screenings, and fever diagnostics, he reviews mediguide4u preventive care and vaccination protocols.
References & Clinical Resources
- Sidbury R, Davis DM, Cohen DE, et al.. Guidelines of Care for the Management of Atopic Dermatitis: Section 2. Management and Treatment of Atopic Dermatitis with Topical Therapies (2014). [Access Resource Link] — Journal of the American Academy of Dermatology. 71(1):116-132
- Mancini AJ. Common Pediatric Viral Exanthems (2000). [Access Resource Link] — Pediatric Clinics of North America. 47(4):877-897
- Saguil A, Kane SF, Lauters R, et al.. Hand, Foot, and Mouth Disease: A Review (2019). [Access Resource Link] — American Family Physician. 100(7):408-414
Related Healthcare Guides
Iron Deficiency Anemia: Symptoms, Ferritin Testing, Causes, and Clinical Management
Vitamin D Deficiency: Symptoms, Causes, Foods, 25(OH)D Lab Ranges, and D3 Dosing
Reader Reviews & Clinical Q&A
Real experiences, reader questions, and verified physician guidance.
When my toddler came down with severe vomiting and diarrhea, the syringe micro-dosing protocol (5 mL every 3 minutes) outlined in this article kept him hydrated and avoided an ER visit.
We are so glad the AAP oral syringe protocol helped your son recover safely at home, Jessica. Recognizing early dehydration signs is essential for every parent.
The clinical guidelines cited here (AAP watchful waiting and LEAP early allergen introduction) reflect current gold-standard pediatric evidence. Excellent reference for parents.
Thank you, Dr. Raymond. Our pediatric editorial board ensures all childhood guides adhere strictly to AAP consensus recommendations.