Nail fungal infections (onychomycosis) are difficult to treat, especially as fungi become resistant to standard antifungal medications. Researchers tested a new gel made from Zataria multiflora (Shirazi thyme) packaged in special nanoparticles that help the medicine penetrate the nail better. In a clinical trial comparing this gel to placebo, the Zataria multiflora treatment showed better results after just 2 weeks, with 70% of patients experiencing fungal cure compared to 55% with placebo.