Natamycin is an antifungal medication used to treat infections caused by fungi. It is commonly applied in the form of eye drops to manage conditions like fungal keratitis, which affects the cornea. Natamycin works by inhibiting the growth of fungi, helping to eliminate the infection and promote healing. In addition to its medical uses, Natamycin is also utilized as a food preservative. It helps prevent spoilage in various products, particularly dairy items like cheese, by inhibiting mold and yeast growth. This dual application highlights its importance in both healthcare and food safety.