Persistent headaches for 10 days can be due to migraine or tension, and Divaa is commonly used to prevent such headaches over time. It is generally safe when taken as prescribed, but it can sometimes cause side effects like nausea, weight gain, or drowsiness in some people. Take it regularly as advised, maintain good sleep and hydration, and avoid headache triggers to support recovery. If side effects are troubling or headaches do not improve, consult your doctor to review and adjust the treatment.