Abstract: A method and topical pharmaceutical composition for treating respiratory allergies, allergic rhinitis, allergic conjunctivitis, allergic asthma, and allergy to fur and dust, in which free ion calcium plays a role in a subject. The composition is in the form of oral local and/or nasal liquid solution or suspension for instillation, inhalation or insufflation and includes as active agent, at least one compound selected from the group consisting of: DL-.alpha.-glycerophosphoric acid, glutaric acid and their sodium or potassium salts as the essential active agent. The active agent, when supplied in a sufficient amount, being effective to enable by a reduction in free ion calcium concentration the removal or improvement in symptoms of allergy amenable to said free calcium ion concentration reduction.