Drinking celery juice nausea, dizziness, consider and gastrointestinal diseases, allergic reactions and so on have a certain relationship. 1. Gastrointestinal diseases: for example, patients with celery juice may cause acute gastroenteritis, then the patient will have nausea, vomiting, abdominal pain, diarrhea and other symptoms, after dehydration due to insufficient circulating blood, insufficient cerebral blood supply, can be accompanied by dizziness. After the onset of the disease can be prescribed to use montelukast and other drugs to stop diarrhea, accompanied by dehydration should be actively rehydration and symptomatic treatment. 2. Allergic reaction: there may be a very small number of patients who are allergic to celery juice, which may cause nausea, dizziness, accompanied by body itching and other symptoms. Give the patient anti-allergy treatment, follow the doctor’s instructions to give loratadine, cetirizine and so on. If nausea and dizziness occur when drinking celery juice, the patient should go to a hospital outpatient or emergency room.