Oral Manifestations of Allergic Contact Dermatitis, Urticaria, and Angioedema

The presentation focuses on the oral manifestations of allergic contact dermatitis (ACD), urticaria, and angioedema, led by an expert in patch testing and allergy management. The speaker outlines key distinctions between localized and systemic reactions in ACD, specifically in oral contexts. A case study of a 54-year-old woman with dermatitis on her eyelids and inflamed gums illustrates practical diagnosis and treatment considerations. The presentation emphasizes the importance of recognizing that ACD is often poorly demarcated and can be triggered by various allergens, including cosmetic and dental materials. Key allergens discussed include surfactants, preservatives, and metals. The speaker elaborates on the systemic aspect of contact dermatitis, which can manifest through ingestion of allergens. Diets for individuals sensitive to substances like nickel or balsam of Peru may be essential for management. The talk also distinguishes between urticaria and angioedema, discussing their characteristics, causes, and treatment options, including antihistamines and biologics like omalizumab. The speaker encourages proactive treatment strategies and the consideration of comprehensive allergen testing while clarifying that routine testing may not always be necessary for chronic urticaria. The speech concludes with best practices for managing both hives and angioedema, advocating for dose optimization of antihistamines and potential referral to specialists.