1. The use of an anhydrous agent for external use for the treatment of nail diseases caused by mycoses and for nail care, including a) one or, if necessary, several C-C1-6 alkyl esters of lactic acid, malic acid, tartaric acid or citric acid, exhibiting antifungal action, and b) if necessary, physiologically acceptable excipients. 2. The use of an anhydrous agent for external use according to claim 1, including ethyl ester of lactic acid, malic acid, tartaric acid or citric acid as an antifungal agent. The use of an anhydrous agent for external use according to claim 1, comprising isopropyl ether of lactic acid, malic acid, tartaric acid or citric acid as an antifungal agent. The use of an anhydrous agent for external use according to claim 1, comprising ethyl lactic acid ester as an antifungal agent. The use of an anhydrous agent for external use according to claim 1, comprising malic acid diisopropyl ether as an antifungal agent. The use of an anhydrous agent for external use according to any one of claims 1 to 5, comprising one or more inert fillers selected from the group consisting of terpenes or oils containing terpenes, alcohols, ketones, fatty acid esters, polyglycols, surfactants, urea , antioxidants and complexing agents. 7. A method for the production of anhydrous agents for external use according to any one of claims 1 to 6, in which one or more C-C1-6 alkyl esters of lactic acid, malic acid, tartaric acid or citric acid and, if necessary1. Применение безводного агента для наружного применения для лечения заболеваний ногтей, вызванных микозами и для ухода за ногтями, включающегоa) один или, если необходимо, несколько C-Cалкильных эфиров молочной кислоты, яблочной кислоты, винной кислоты или лимонной кислоты, проявляющих противогрибковое действие, иb) если необходимо, физиологически приемлемые инертные наполнители.2. Применение безводного агента для наружного применения по п.1, включающего этиловый эфир молочной кислоты, яблочной кислоты, винной кислоты и
