Yes, your prescribed treatment is highly appropriate. Terbinafine (250 mg) is an effective oral antifungal that treats the infection from within, while Ketoconazole (2%) cream directly targets the fungus on your skin. For the rashes under your legs, keeping the area clean and dry is essential. I suggest using a medicated soap containing Ketoconazole to cleanse the affected areas during your bath. Additionally, applying an antifungal dusting powder containing Clotrimazole or Miconazole will help absorb sweat, reduce friction, and prevent further fungal growth. Please complete the full course of your prescribed medication even if your symptoms improve early.