Blood pressure 140/90 mmHg with dizziness can be improved by giving antihypertensive, improving cerebral blood supply, proper rest, stabilizing mood and treating colds. 1. Lowering blood pressure: If the blood pressure is usually low, now 140/90 mmHg, and dizziness occurs, oral antihypertensive drugs, such as captopril, irbesartan and other medications. 2. Improve cerebral blood supply, anticoagulation: usually blood pressure is around 140/90, dizziness is due to cervical spondylosis, cerebral arterial blood supply or cerebral infarction, you can take oral flunarizine hydrochloride, betahistine hydrochloride, aspirin enteric-coated tablets and other treatments, serious patients need to be hospitalized. 3. Pay attention to rest, ensure sufficient sleep, and stabilize mood: lack of sleep, emotional excitement, and poor rest can also have the above symptoms, and after resting and stabilizing mood, the symptoms of dizziness will be relieved, and the blood pressure will also decrease. 4. Anti-cold treatment: Dizziness caused by cold and flu can be treated with cold and flu medicines such as fosfan aminophenolamine tablets, etc., and pay attention to rest and drink a lot of water. There are many reasons that can cause blood pressure 140/90 mmHg with dizziness, so when you have the above symptoms, you must go to the hospital in time, so that you can be treated for the cause.