Treatment of Suspected Mango-Induced Allergic Contact Dermatitis
Immediate Management Approach
- The American Academy of Dermatology recommends applying hydrocortisone 1% cream to all affected areas 3-4 times daily, as this is the FDA-approved treatment for itching, inflammation, and rashes in patients 2 years and older 1
- Hydrocortisone 1% is specifically recommended for facial and extremity involvement, avoiding the risk of skin atrophy associated with more potent corticosteroids 1
- Topical corticosteroid treatment should be continued until the rash resolves, typically within 1-2 weeks 1
- A non-sedating antihistamine, such as loratadine 10 mg daily, cetirizine 10 mg daily, or fexofenadine 180 mg daily, is recommended for daytime use to provide effective antipruritic relief without sedation 1, 2
- For nighttime pruritus interfering with sleep, diphenhydramine 25-50 mg at bedtime may be considered due to its sedative properties 2
Essential Supportive Care
- The American Academy of Dermatology advises instructing patients to apply emollients liberally and frequently to all affected areas, as this forms the foundation of treatment for any pruritic rash 1, 4
- High lipid-content moisturizers are recommended to maintain skin barrier function 3, 4
- Patients should be advised to avoid hot showers and excessive soap use, which can worsen xerosis 5
Reassessment Strategy
- If the rash worsens or fails to improve after 2 weeks of treatment, the American Academy of Dermatology recommends proceeding with dermatology referral for patch testing 1, 4
Red Flags Requiring Urgent Evaluation
- The American Academy of Allergy, Asthma, and Immunology recommends that development of facial swelling, difficulty breathing, or systemic symptoms should prompt emergency treatment with epinephrine, as this may indicate progression to anaphylaxis 6
- Painful lesions lasting >48 hours with systemic symptoms should prompt consideration of urticarial vasculitis and skin biopsy 1