Don't smoke, drink caffeinated beverages or exercise within 30 minutes before measuring your blood pressure. Empty your bladder and ensure at least 5 minutes of quiet rest before measurements. Sit correctly. Sit with your back straight and supported (on a dining chair, rather than a sofa). Your feet should be flat on the floor and your legs should not be crossed. Your arm should be supported on a flat surface (such as a table) with the upper arm at heart level. Make sure the bottom of the cuff is placed directly above the bend of the elbow. Check your monitor's instructions for an illustration or have your healthcare provider show you how. Measure at the same time every day. It’s important to take the readings at the same time each day, such as morning and evening. It is best to take the readings daily however ideally beginning 2 weeks after a change in treatment and during the week before your next appointment. Take multiple readings and record the results. Each time you measure, take two or three readings one minute apart and record the results using a printable (PDF) tracker. If your monitor has built-in memory to store your readings, take it with you to your appointments. Some monitors may also allow you to upload your readings to a secure website after you register your profile. Don't take the measurement over clothes. 看看都遵守了吗？
要测大臂血压，不能图方便测手腕血压。
你吃的ACE inhibitor 吧，常见的不良反应就是干咳。可以换成ARBs (angiotensin receptor blockers)，都是阻断的同一个pathway。药物比如valsartan, losartan