Yes, Mefanorm (Mefenamic Acid) can reduce a high fever, but it should not be your first option. Paracetamol is generally safer and preferred as a first-line treatment for fever. You should only give Mefanorm if it has been specifically prescribed by a doctor. Always administer this medicine with food or milk to prevent stomach irritation, and ensure the patient is well-hydrated. Do not give it to infants under 6 months of age without direct medical supervision. Consult a doctor immediately if the high fever persists for more than 3 days or is accompanied by lethargy, vomiting, or a rash.