To manage a classic migraine without medication, immediately rest in a dark, quiet room. Apply a cold compress or ice pack to your forehead or the back of your neck to help numb the pain. Stay hydrated by drinking water, and try gentle acupressure or massage on your temples. To prevent future migraines, maintain a consistent sleep schedule, eat regular meals, and manage stress through deep breathing or meditation. Keeping a headache diary can also help you identify and avoid personal triggers like specific foods or bright lights. If your symptoms persist or worsen, please seek medical advice.