Commonly known as Athlete’s foot.
Trichophyton rubrum is the usual organism.
Common in elderly.
Maceration at interdigital webs and scaling on plantar surface of the feet are the main manifestations.
Classically involves the third toe web space.
Commonly associated with xerosis.
Hyperhidrosis is a contributing factor.
Potassium hydroxide evaluation establishes the diagnosis.
Topical antifungal agent is the treatment.
First treatment topical terbinafine.