Onychomycosis | Nail Infection | Signs, Symptoms, Treatment

The video tutorial discusses onychomycosis, a fungal infection of the nail caused by dermatophytes, primarily Trichophyton rubrum. It covers the symptoms, such as brittle, crumbling, and yellow nails, and diagnostic methods like KOH prep and PAS stain. Treatment options include oral antifungals like terbinafine and itraconazole, which can cause liver toxicity, and topical antifungals like ciclopirox and efinaconazole, which are safer but require longer application. The video emphasizes starting with topical treatments due to the side effects of oral medications.

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