After eating garlic stomach pain nausea can drink a lot of water, drink milk, medication and so on. 1. Drink a lot of water: eating garlic stomach pain may be due to allicin stimulation of the gastric mucosa leading to spasms and triggered, drink a lot of water can dilute allicin, less stimulation of the gastrointestinal tract. 2. drink milk: milk in addition to dilute allicin, but also can effectively decompose allicin, protect the gastrointestinal mucosa, thus reducing the symptoms of stomach pain and nausea. 3. medication: eating acid stomach pain when nausea symptoms are heavier or persistent unrelieved, you can apply magnesium aluminum carbonate, bismuth pectin, omeprazole and other drugs, inhibit gastric acid secretion, protect the gastric mucosa, relieve symptoms. When the stomach pain and nausea after eating garlic persists or the symptoms worsen, it is recommended to go to the hospital in time for regular treatment, so as not to aggravate the condition. All of the above drugs need to be applied under the guidance of a physician, not unauthorized use of drugs.