The thera pearl eye mask can be heated or cooled to help relieve dry and puffy eyes as well as sinus related headaches the mask can be cooled in the freezer and used to alleviate puffy eyes and sinus headaches while the heated mask relieves dry eye blepharitis and nasal congestion place it over your eyes and sinuses or alternatively slide it up to your forehead its adaptable shape will mean it stays put without drips or leaks the innovative pearl technology retains its temperature for