Abstract: A hydrogen-delivering system for topical application of molecular hydrogen is provided. The system includes a housing that comprises at least one dry chemical and a liquid composition sealed therein, and that is configured to be attached to a target area of a subject's skin. The dry chemical and the aqueous composition are separated within the housing until the system is activated and the dry chemical and the aqueous composition are mixed to generate molecular hydrogen. The molecular hydrogen passes through a skin-facing surface of the housing, which is permeable to hydrogen and not permeable to the dry chemical and the aqueous composition, and is delivered to the subject's body.

Abstract: A method for alleviating, preventing or treating symptoms of a viral infection such as common cold and flu, comprising administering to a subject in need thereof at least one solid form that releases molecular hydrogen upon exposure to the subject's gastric juice.