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  • Title: Topical therapy for dermatophytoses: should corticosteroids be included?
    Author: Erbagci Z.
    Journal: Am J Clin Dermatol; 2004; 5(6):375-84. PubMed ID: 15663334.
    Abstract:
    Dermatophytoses, commonly known as ringworm or tinea, represent superficial fungal infections caused by dermatophytes, which are among the most common infections encountered in medicine. The use of corticosteroid-containing combinations in dermatophyte infections that are usually treated with topical medications is still a much-debated issue. The addition of a corticosteroid to local antifungal therapy may be of value in reducing local inflammatory reaction and thus carries the theoretical advantage of rapid symptom relief in acute dermatophyte infections associated with heavy inflammation. However, the use of such combinations requires caution as they have some potential risks, especially with long-term use under occlusive conditions. Corticosteroid-induced cutaneous adverse effects have been reported primarily in pediatric patients due to inappropriate application of these preparations on diaper areas. Additionally, the corticosteroid component may interfere with the therapeutic actions of the antifungal agent, or fungal growth may accelerate because of decreased local immunologic host reaction, such that underlying infection may persist, and dermatophytes may even acquire the ability to invade deeper tissues. Analysis of the literature documenting clinical study data and adverse reactions related to combination therapy, drew the following conclusions: (i) combination products containing a low potency nonfluorinated corticosteroid may initially be used for symptomatic inflamed lesions of tinea pedis, tinea corporis, and tinea cruris, in otherwise healthy adults with good compliance; (ii) therapy should be substituted by a pure antifungal agent once symptoms are relieved, and should never exceed 2 weeks for tinea cruris and 4 weeks for tinea pedis/corporis; and (iii) contraindications for the use of these combinations include application on diaper or other occluded areas and facial lesions, as well as in children <12 years of age and in immunosuppressed patients for any reason.
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