Suggest Treatment For Headache And High Blood Pressure

I am 25 and I have headaches everyday and taking my blood pressure it was 156/102. I got preeclampsia when I was pregnant and had a c section 5 months ago .So I had hydralazine extra pill .I only been taking them for 24 hours and now my bp is138/96 .my no went down but my headaches are still there.