Easily heat in microwave for 10 seconds for heat therapy or chill in freezer for 2 hours for cold therapy, gel perals can stay pliable even after frozen and fit snugly to eye area or your forehead. Eye compress can hold the therapeutic temperature for the doctor recommended time of approximately 20 minutes Reusable ice eye mask is ideal for relieving swollen & puffy eyes, dry eyes, headaches, migraines, sinus pain and stress. An essential first aid kit for face allergies or eye treatment at home, office or travel. Every eye mask comes with a resealable bag for storage and prolong product longivity Ice pack cooling mask is integrated latex-free PVC with super soft fabric that can provides dual temperatures use and extend the time of hot or cold therapy.