It is for eye compress, can be used for hot and cold.
Put the eye mask into refrigerator to be refrigerated for an hour before taking out for use, or put it into freezer when in urgent need. It should be wore on the eye when used.
Caution:
Whether the pad is hot or cold it is advisable to check that the temperature is not too extreme against the skin. It is recommended that the GEL eye mask is wrapped in cloth before applying to skin.