Other Information: Fungicure may be applied to exposed nail-beds, cuticles, around nail edges and under nail tips where reachable with its applicator brush. This product is not intended to, nor will it, penetrate hard nail surfaces. While not all finger and toe fungal infections are curable with OTC topical medications, if you see improvement within 4 weeks of use, you may continue to use Fungicure until satisfactory results are obtained. You may report serious side effects to the phone number provided under Questions?