**Question:** Drugs used topically for dermatophytes-

A. Corticosteroids
B. Antifungal agents
C. Analgesics
D. Antihistamines

**Core Concept:** Dermatophytes are a group of fungi that primarily infect the skin, hair, and nails. Topical medications are used to treat dermatophytosis, also known as ringworm or tinea infection.

**Why the Correct Answer is Right:**

B. Antifungal agents (e.g., terbinafine, clotrimazole, miconazole) are the right choice as they target the fungal pathogens causing dermatophytosis directly. These drugs suppress the fungal cell membrane ergosterol biosynthesis, leading to cell membrane disruption and fungal cell death.

**Why Each Wrong Option is Incorrect:**

A. Corticosteroids are anti-inflammatory agents used to reduce skin inflammation, but they do not directly target the fungal pathogens causing dermatophytosis.

C. Analgesics are medications used to relieve pain, which is not the primary objective in treating dermatophytosis.

D. Antihistamines are used to relieve allergic symptoms, while dermatophytosis is a fungal infection and not an allergic condition.

**Clinical Pearl:**

Topical steroids, though not the primary choice for dermatophytosis, can be used in combination with antifungal agents to control inflammation and improve treatment outcomes. Always consider the potential interactions between different topical medications when formulating a treatment plan for dermatophytosis.

**Correct Answer:** B. Antifungal agents