It is common for a fever to fluctuate and return as paracetamol (Crocin) wears off, especially while the body fights an infection. A hot head and warm feet are normal physiological responses during a fever. Ensure the dose of the syrup is correct based on body weight. To help comfort them, keep the room cool, offer plenty of fluids to prevent dehydration, and use a tepid, damp cloth on the forehead. If the fever remains consistently high after three days, or if there is extreme lethargy, difficulty breathing, or vomiting, please consult a doctor promptly for a proper evaluation.