Fungal nail infections are difficult to reach and to treat as the infection grows on both the inside and outside of the nailexcilor was specificall developed to treat fungal nail infections and is based on 3 principleseffective nail fungus treatmentsuperiror nail penetrationone minute a day no filing requiredstudies have shown that on average a single applicator consitutes a fulll course of treatment for one infected nail 400 applicationsalways read the product information before usediabetic