There are many causes of dizziness and nausea, which need to be treated according to the specific cause. 1, if the dizziness and nausea is caused by cervical spondylosis, you can take some blood circulation and treatment of gastrointestinal tract drugs under the guidance of a doctor. Normally, you need to pay more attention to the sitting posture and avoid long hours of low head work. 2, poor rest can also trigger dizziness and nausea, this situation needs to pay more attention to rest, avoid staying up late, and even under the guidance of doctors can take some nerve conditioning drugs. Usually need to eat more protein-rich and vitamin-rich food. Quit smoking and drinking. 3, some women in early pregnancy can also appear in this situation, this situation is mostly due to changes in hormone levels in the body after pregnancy, generally do not need special treatment, after 3 months of pregnancy more can be relieved. But at this time need to eat some easy to digest, light food. 4.Sometimes long-term cerebral blood supply deficiency can also occur in this situation. At this time, you can take some vasodilator drugs under the guidance of your doctor. 5. Sometimes blood pressure can also cause dizziness and nausea; in this case, you need to measure blood pressure, if it is low, you can eat some protein-rich food and soy products, or even take some blood pressure-raising drugs; if it is high, you can take sublingual nifedipine tablets; the specific use of drugs, need to be under the guidance of a doctor’s interview, do not use drugs at will. When dizziness and nausea occur, it is recommended to go to a regular hospital for treatment as soon as possible.