Amazon has the 0.45oz Silka Max Strength Antifungal Liquid with Brush Applicator for Toenail Fungus Treatment, Athlete's Foot & Ringworm on sale for $6.49 - 5% off with Subscribe & Save (can cancel at any time) = $6.17 with free shipping on $25+ or with Prime.

Contains Tolnaftate and other agents that penetrates the nail to eliminate the fungus from its source, restoring nail health. Silka antifungal liquid is an effective athlete's foot treatment.