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Title: Allergic contact dermatitis from povidone-iodine: a re-evaluation study. Author: Lachapelle JM. Journal: Contact Dermatitis; 2005 Jan; 52(1):9-10. PubMed ID: 15701122. Abstract: 500 consecutive patients were patch tested with a 10% povidone-iodine (PVP-I) solution, diluted 10 times in water. Readings were made at 2 and 4 days. 14 of the 500 (2.8%) showed a positive test to PVP-I. The 14 positive patients to PVP-I were subjected to a repeated open application test (ROAT) with a PVP-I solution, as is; 2 of the 14 were recorded as positive. It was concluded that only 2 of the 500 patients had true allergic contact dermatitis from PVP-I (0.4%). This study emphasizes the need for more complete investigation, when testing with some allergens, when they share both irritant and allergenic properties, such as PVP-I. The approach is important to rule out false-positive patch test reactions and to assess true clinical relevance.[Abstract] [Full Text] [Related] [New Search]