Meftal-P suspension (Mefenamic Acid) is typically administered every 8 hours (3 times daily), with the dosage strictly based on your child's weight (usually 4-6 mg/kg per dose). Giving it every 5 hours is too frequent and exceeds the safe daily limit of 3 doses in 24 hours, risking serious side effects like stomach irritation or kidney issues. Since she has had a recurring fever for 3 days, do not increase the dose or frequency. Please consult a pediatrician immediately to determine the underlying cause of the fever and get the correct weight-based dosage.