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A prospective study on patterns of topical steroids self‐use in dermatophytoses and determinants predictive of cutaneous side effects

Nonprescription use of topical corticosteroids (TCS) is a significant concern. This can lead to cutaneous adverse effects, altered morphology of skin disorders and chronicity of cutaneous infections. To record and analyze the patterns of TCS use in patients with tinea corporis/cruris and analyze factors determining the development of cutaneous side effects. Hundred patients with a clinical diagnosis of tinea corporis/cruris who could recall the TCS preparation/s used were included. The TCS usage patterns were recorded and analyzed. Most patients had used very potent TCS (n = 66). Most reported using TCS intermittently for duration ranging from 1 to 4 weeks (n = 78). Relapse of symptoms occurred within 1 to 2 weeks of stopping TCS, triggering reuse. Cutaneous adverse effects were present in 44 patients (striae [n = 29], hypo/depigmentation [n = 11], skin thinning [n = 8], hypertrichosis [n = 1], tinea pseudoimbricata [n = 1]). There was a significant correlation between presence of cutaneous adverse effects and the total duration of TCS use (P = .0016), duration of disease (P = .016), and total amount of TCS used (P = .012). Use for >60 days and of >32 g were associated with 89% and 96.3% (respectively) probability of developing cutaneous adverse effects. Self‐use of TCS is a worrisome trend. Intermittent use is a plausible reason for development of cutaneous side effects in only 44% patients.