KOOLFEVER Cooling Gel Sheet is ready to use for sudden fever. Gentle to skin, each sheet is made of a moist, but not messy gel that absorbs and disperses heat the whole night. Number one in their category in Japan, these stick-on gel sheets can bring down body temperature effectively. KOOLFEVER is also suitable to use for heat relieve during hot days, humid nights and even for headaches and toothaches. KOOLFEVER Children come in the size perfectly fitted to children's forehead.