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Updated: Jul 25, 2025

A Mouse Ear Model for Allergic Contact Dermatitis Evaluation
Published on: March 24, 2023
Allergic Contact Dermatitis in Pediatric Practice
Kam Lun Hon1, Alexander K C Leung2, James W C H Cheng3
1Department of Paediatrics, CUHKMC, The Chinese University of Hong Kong, Hong Kong, China.
Insights
Allergic contact dermatitis (ACD) significantly impacts children and young adults, causing quality-of-life issues. Early diagnosis through history, examination, and patch testing, combined with allergen avoidance and appropriate corticosteroid treatment, is key to managing this common condition.
Area of Science:
- Dermatology
- Pediatrics
- Immunology
Background:
- Allergic contact dermatitis (ACD) is a widespread skin condition affecting children, adolescents, and young adults.
- Patients with ACD experience significant psychosocial and quality-of-life (QoL) challenges, burdening both children and their caregivers.
- ACD represents a prevalent form of immunotoxicity with considerable public health implications.
Purpose of the Study:
- To provide a comprehensive overview of allergic contact dermatitis (ACD).
- To discuss both common and less frequent causes of ACD.
- To review current diagnostic and management strategies for ACD in pediatric populations.
Main Methods:
- An extensive literature review was conducted using PubMed Clinical Queries.
- Keywords "allergic contact dermatitis" were used in August 2022, focusing on English literature concerning children.
- Included study types encompassed meta-analyses, RCTs, clinical trials, observational studies, guidelines, and case reports.
Main Results:
- ACD affects over 20% of children and adults, leading to significant QoL impairments.
- Manifestations include edema, vesiculation, and erythema; treatment involves topical or systemic corticosteroids.
- Patch testing is recommended when initial treatments fail or the diagnosis is uncertain.
Conclusions:
- ACD is a common, burdensome disease with physical, psychological, and economic impacts.
- Diagnosis relies on patient history, physical examination, and potentially skin patch testing to identify allergens.
- Management centers on allergen avoidance and appropriate use of topical or systemic corticosteroids.
Background:
Allergic contact dermatitis (ACD) is prevalent among pediatric population, adolescent and young adults. Patients with ACD experience a lot of sociopsychological and qualityof- life (QoL) difficulties. Children and their caregivers alike are vulnerable to the burden of ACD.
Objectives:
We have, in this paper, provided an overview of ACD and discussed common and unusual causes of ACD.
Methods:
We performed an up-to-date literature review in the English language on "allergic contact dermatitis" via PubMed Clinical Queries, using the keywords "allergic contact dermatitis" in August 2022. The search included meta-analyses, randomized controlled trials, clinical trials, casecontrol studies, cohort studies, observational studies, clinical guidelines, case series, case reports, and reviews. The search was restricted to English literature and children.
Results:
ACD may be acute or chronic and it affects more than 20% of children and adults with significant quality-of-life impairments. ACD is manifested by varying degrees of cutaneous edema, vesiculation, and erythema. The hypersensitivity reaction is one of the most prevalent forms of immunotoxicity in humans. Localized acute ACD lesions can be managed with high-potency topical steroids; if ACD is severe or extensive, systemic corticosteroid therapy is often required to provide relief within 24 hours. In patients with more severe dermatitis, oral prednisone should be tapered over 2-3 weeks. Rapid discontinuation of corticosteroids can result in rebound dermatitis. Patch testing should be performed if treatment fails and the specific allergen or diagnosis remains unknown.
Conclusion:
ACD is common and can be a physically, psychologically, and economically burdensome disease. Diagnosis of ACD is primarily based on history (exposure to an allergen) and physical examination (morphology and location of the eruption). Skin patch test can help determine the causative allergen. Allergen avoidance is the cornerstone of management. Topical mid- or highpotency corticosteroids are the mainstay of treatment for lesions on less than 20% of the body area. Severe cases of ACD may require treatment with systemic corticosteroids.
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