what r the hypertonics packets? who usea them?

Hypertonic packets mixed with 8oz. of water delivers over twice the concentration of saline as the isotonic packets. Research shows that a hypertonic (2.7%) or more concentrated solution may help reduce congestion better than an isotonic (0.9%) solution. This is because a more concentrated salt solution will draw more water out of the congested tissue, reduce swelling and open up the nasal passages and sinus openings to allow for better drainage. It is possible that you may experience temporary burning or stinging with the Hypertonic solution.