We always recommend applying dry eye gel drops or nighttime ointment before wearing your Blinkjoy mask at night. Our goal is to create a humid microenvironment for the eyes and prevent excessive evaporation of tears to minimize symptoms of dry eye. However, tear deficiency is common for those with dry eye, which means you may not have enough tears to begin with. Applying drops or ointment prior to wearing your mask will help alleviate this problem and maximize the benefits of sleeping with your Blinkjoy mask.