High blood pressure after delivery is usually gestational hypertension, which can be gradually recovered within a month with conditioning, and if the blood pressure does not drop, you may have primary hypertension. Both are caused by high cholesterol in the blood and the clotting of platelets in the blood. It is recommended to eat low salt and low fat food, not to get involved in smoking and alcohol, and to avoid emotional excitement. In terms of nutrition, you should eat duck meat, which is flat and not greasy, rich in protein, fat, iron, potassium and other nutrients; eat more fish, which is rich in high-quality protein and fat, especially the unsaturated fatty acids, which can effectively reduce blood cholesterol, inhibit platelet clotting, and effectively prevent the formation of small arteriosclerosis and thrombosis throughout the body. You can use drugs, such as Heart Tongding, Qiju Dihuang Wan, Danshen Tablets, Niuhuang Hypotensive Pill, etc.