Nasal irritation from occupational dust fumes animal dander grass pollen smoke smog and house dirt.</br>It is strongly recommended to use this Green packet only under the advice of your physician or using your judgment.</br>If you experience any intolerable burning or stinging please discontinue the use of the hypertonic solution.</br>The therapeutic benefits will be identical.</br></br>Product Description</br></br>Mixture Packets Box Contains: 100 Regular Premixed Packets of pH Balanced Sodium Chloride & Sodium Bicarbonate Mixture (USP Grade Natural Ingredients Isotonic Preservative Free & Iodine Free) Educational Brochure Instructions in English Spanish or French What is the difference between Hypertonic (green) and Isotonic (blue) packets? This Green colored packet will make a Hypertonic (higher concentration) solution when mixed with 8 oz. (240 ml.) of water. It can also make an isotonic solution equivalent to our regular blue colored packet if mixed with 16 oz. (480 ml.) of water. Our regular product the blue colored packet makes an isotonic solution in 8 oz. (240 ml.) of water (using our SINUS RINSE bottle or other measuring devices). It is strongly recommended to use this Green packet only under the advice of your physician or using your judgment. A few research reports?? plus feedback from some physicians and customers have reported additional benefits from using a hypertonic solution. If you experience any intolerable burning or stinging?? please