Aqueous pharmaceutical system for the administration of drugs to the nails. The invention relates to a topical preparation for treating diseases of the toenails and / or hands nails, based on a thermosensitive aqueous gel that at room temperature behaves as a dissolution and after application of nails, forming a hydrated layer, film or hydrogel from which release the active ingredients. The composition of the gel contains mostly water, a gel-forming polymer sensitive to changes in temperature, solubilizing agents and enhancers of absorption and / or penetration of the drug in nails.
