Indications |
Glabrous tinea |
Most cases in the current scenario require systemic therapy |
Involvement of multiple sites |
Extensive disease based on clinical judgement |
Chronic dermatophytosis |
Recurrent dermatophytosis |
Steroid modified dermatophytosis/ Tinea incognito |
Failure of topical therapy |
Associated nail and hair involvement |
Immunocompromised states like hematological malignancies and therapy with immunosuppressive drugs |
Choice of systemic drug |
First line |
Best option considering overall efficacy and safety |
Itraconazole, Terbinafine, |
Alternate drugs |
Prolonged duration of treatment required |
Griseofulvin, Fluconazole |
Complementary topical therapy |
Choice and rationale |
Topical antifungal without corticosteroid and antibacterial components. |
Systemic antifungal therapy should preferably be combined with topical antifungal therapy which may be of same or different class |
There are limited laboratory/clinical studies on the efficacy and utility of combination antifungals (systemic with topical OR two systemic) for dermatophytosis of the glabrous skin |
Response |
Failure |
No improvement or worsening of symptoms and signs at 3 weeks |
Assessment of factors responsible for it and if detected to be corrected; if not, antifungal therapy to be changed |
Total response |
Complete subsidence of symptoms and signs with or without post-inflammatory changes anytime during the treatment |
Completion of therapy for the stipulated period or as per the individual response |
Partial Response |
Partial subsidence of symptoms and signs at the end of 3 weeks |
Extended duration of treatment to be considered with appropriate laboratory monitoring; double dosing of terbinafine may be considered |
Cure |
Clinical cure |
Complete subsidence of symptoms and signs with or without post-inflammatory changes at the end of treatment |
Follow up must be at 4 weeks after apparent clinical cure to look for recurrence |
Mycological cure |
Complete subsidence of symptoms and signs with negative mycology reports (direct microscopy with/without culture) at the end of the treatment |
Follow up must be at 4 weeks after apparent clinical cure to look for recurrence |
Laboratory monitoring |
Hepatotoxicity |
All systemic antifungals are hepatotoxic |
Monitoring hepatic function if the treatment is extended or if the dose is doubled |
Renal toxicity |
Systemic drugs used in the management of dermatophytosis do not commonly cause renal toxicity |
Renal monitoring may be considered if indicated on clinical grounds |
Follow up |
First follow up visit |
To assess clinical response |
At 3 weeks, if inadequate response |
Final follow up visit |
To assess recurrence |
At 4 weeks after apparent clinical cure |
Special situations |
Pregnancy |
Teratogenicity of the drugs should be addressed |
Topical antifungals with established safety [Table 8] |
Oral terbinafine (routine use should be avoided) |
Lactating mother |
Safety of the infant should be addressed |
Topical antifungals |
Oral fluconazole |
Children under 2 years |
Safety with respect to hepatotoxicity, GI intolerance and other adverse effects should be addressed |
Topical antifungals with established safety |
Oral fluconazole |
Children above 2 years |
Safety with respect to hepatotoxicity, GI intolerance and other adverse effects should be assessed |
Topical antifungals with established safety |
Oral terbinafine, itraconazole, fluconazole and griseofulvin |
Hepatic dysfunction |
Monitoring of the hepatic function is mandatory |
Topical antifungals |
Oral fluconazole |
Renal dysfunction |
Renal function monitoring if terbinafine is used (dose reduction if creatinine clearance is <50 ml/ min) |
Topical antifungals |
Oral itraconazole |
Cardiac dysfunction |
Cardiotoxicity of drugs should be addressed |
Topical antifungals |
Oral terbinafine |