Put the KoolFever inside the refrigerator and the blue soft gel will turn really cold. Then place in on the child's forehead.
I believe the KoolFever is effective as many of my relatives are purchasing it over and over again for their children.
My sister-in-law even bought the adult one for herself.
It probably is effective on the minor fever. For the serious ones, got to visit the clinic and consult the doctor.
We got the KOOLFEVER from KOOLFEVER Singapore.