Hi Thanks for posting on HCM Hot flushes may be not be caused by your pills.Rather, hormonal pills may help reduce such symptoms at menopause.The exact cause of such a symptom in a woman not yet in menopause may be unknown.However, factors that may contribute to such symptoms may be as a result of changes in reproductive hormones and in your body s thermostat (hypothalamus), which becomes more sensitive to slight changes in body temperature. I will suggest: -You keep cool -Eat healthy and balanced with enough vegetables -Drink enough water -Relax well -Avoid smoking and alcohol -Have your weight under check -Regular fitness exercises If symptoms persist with these measures, you the Doctor for evaluation and investigation. Hope this will help Best regards