Variables: fever, herbal gel variables: body temperature decreased from the use of herbal gel fever control variables: duration of fever, the patient's gel .
Variable costs: j lalot fever from the herb variables, based on the reduced body temperature: from using the herb fever lalot, j . Control variables: how long it will take to use the patient's fever lalot, j .
The variables: gel reduce fever herbs from the dependent variables: body temperature decrease in the use of the gel and reduce fever variable control of herbs: the duration of the use of fever reducing gel patients