The Evolving Landscape of Contact Dermatitis Diagnosis: A Critical Appraisal of Recent Regulatory Constraints.

The current limited availability of patch tests for diagnosing Allergic contact dermatitis (ACD) and occupational or non-professional diseases, in accordance with AIFA regulations, has significantly affected the diagnostic approach for patients and affected workers. The issue is even more severe for haptens of occupational origin. In occupational medicine, the patch test is crucial for establishing the causal link between the skin disease and the patient's work activities. Accurate diagnosis is essential for occupational physicians both to determine the need for a job change and to assess workers' compensation. Due to limited diagnostics and regulatory restrictions, it remains impossible to diagnose occupational ACD. In this context, occupational doctors will focus on primary prevention by avoiding risk products and replacing them with non-sensitizing or non-cross-reactive alternatives. This paper addresses the challenges posed by the new AIFA (Italian Medicines Agency) diagnostic restrictions and explores potential solutions and future perspectives.