Tinea corporis (mycosis)

Initially follicularly bound pustules, which progress in size over time and become erythematous, sharply defined, bordered, pruritic, scaly plaques and asbestos-forming nodules. If they are very widespread, they form map-like figures.
Necrosis can also occur, particularly in immunocompromised patients.
Chronic tinea corporis is often persistent in body folds.
Majocchi granuloma --> Tinea corporis involving the hair follicles and producing pustules and nodules.
Increasingly common: Tinea imbricata, comes from Asia and produces small brownish-red rings.

General measures

If zoophilic dermatophytes are detected, all animals with which there has been contact should be examined.
Examination of other people in the household
Treatment should be carried out with both topical and systemic antimycotics!

Topical therapy

Supportive shampoos

Ketoconazole-containing shampoo: leave on for 5-10 minutes. Repeat on the 2 following days
Ciclopirox-containing shampoo: leave on for 5-10 minutes. Repeat on the 2 following days.

Systemic therapy

Itraconazole p.o. 200 mg once a day for 1 week
Alternative: Fluconazole p.o. 150-200 mg 1x/week for 2-4 weeks
Alternative: Terbinafine p.o. 250 mg once a day for 2 weeks
Alternative: Griseofulvin p.o. 500 mg 2x daily (not commercially available in Switzerland) for 2-4 weeks.
Children: Although only griseofulvin is authorised for use in children, we recommend the use of itraconazole in view of the data available.
Therapy should be continued for approx. 1 month after clinical healing --> ↓ recurrences.

Differential diagnoses