Contact and Atopic Dermatitis: Diagnostic Dilemmas & Emerging Treatments

The presentation focuses on contact dermatitis and atopic dermatitis, discussing diagnostic dilemmas and emerging treatments. Key points include the prevalence of allergic contact dermatitis (ACD) in patients with atopic dermatitis, with recent studies revealing that ACD is more common than previously thought. Various factors contribute to this increased prevalence, including impaired skin barrier function in atopic dermatitis, which allows allergens to penetrate more easily. Allergens commonly triggering reactions in atopic dermatitis patients include metals, formaldehyde, and certain topical medications. The speaker emphasizes the challenges in distinguishing between atopic and allergic contact dermatitis based solely on clinical appearance, advocating for patch testing as a crucial diagnostic tool. The presentation also touches upon the implications of newer treatments, such as dupilumab and Janus kinase inhibitors, in managing these conditions while potentially affecting patch test results. Patients on dupilumab may still show relevant positive patch test results, although some allergens may be missed when on the medication. Encouragement is given to gather more data on how emerging treatments impact allergic contact dermatitis and to consider these treatment options alongside allergen avoidance strategies. Overall, there is potential for both progression in existing understanding and innovative treatments to improve patient outcomes.