Isomar Allergies Spray soothes and moisturizes the airways thanks to the combination of its ingredients that favor its dual action. It helps in preventing and fighting the cold and the symptoms of allergy. it has the same saline concentration as our body fluids (0.9% in NaCl), the solution passes on the mucosa and, in addition to performing a fluidising action and releasing the closed nose, cleans it by carrying away allergens and bacteria.