The main reasons for nausea when smelling fumes are allergy, early pregnancy, chronic pharyngitis, gastroenteritis, liver and gallbladder system diseases, etc. Patients can take some relief measures according to the specific causes. Common causes and treatments: 1, allergy: some patients will be allergic to the smell of fumes, the body smells fumes will produce nausea symptoms, this is a physiological response, patients do not need too much intervention, avoid fumes in daily life can be; 2, early pregnancy: if a woman of childbearing age, nausea and vomiting symptoms, need to be based on the menstrual situation to determine whether or not the pregnancy, pregnancy reaction is many manifested as nausea, dry heaving, with the increase in pregnancy months the patient’s symptoms may be relieved; 3, chronic pharyngitis: such as smelling fumes on the nausea, to consider pharyngeal diseases, fumes stimulate the mucous membrane of the nasal cavity, resulting in nausea, it is recommended that you can orally herbal ingredients of the tablet, such as grass coral tablets, pay attention to oral hygiene in the morning and evening, and diligently brush your teeth; 4, gastroenteritis: a small number of patients with gastroenteritis by the inflammation of stimulation causes Gastrointestinal discomfort, there may be nausea when smelling fumes, patients should follow the doctor’s instructions to use domperidone, mosapride and other drugs to relieve symptoms; 5, hepatobiliary system diseases: eating greasy food or smelling fumes will be nausea, can be followed by the doctor’s instructions for treatment. Precautions: patients should maintain a light diet, reduce the inhalation of fumes, develop good eating habits, eat small meals, eat more easily digestible fluid diet, such as millet porridge, noodles and so on. Avoid spicy stimulation, cold diet, drink more water, not only to keep the body well hydrated, but also to effectively relieve discomfort.