Provided are compositions and methods for treating lung or respiratory disorders or conditions characterized by airflow obstruction or limitation, or symptoms thereof (e g, asthma, rhinitis, allergic rhinitis, and chronic obstructive pulmonary disease (CaPO) and CaPO-associated conditions (e g, bronchitis, emphysema, asthma), emphysema, pneumonia, bronchitis, in-fluenza, SARS, tuberculosis, and whooping cough (pertussis), and the like) comprising administering a therapeutic composition comprising at least one electrokinetically altered fluid comprising an ionic aqueous solution of charge-stabilized oxygen containing nanostructures as disclosed herein, or comprising administering a nonelectrokinetic superoxygenated aqueous solution The methods preferably comprise regulating intracellular signal transduction by modulation of at least one of cellular membranes, membrane potential, membrane proteins (e g, membrane receptors, (e g, G protein-coupled receptors, and intercellular junctions)) Additional aspects include therapeutic compositions, and combination treatment methods comprising administration of electrokinetically generated fluid in combination with at least one additional therapeutic agent (e g, albuterol, etc).