Ginger is a common folk treatment for upset stomach and nausea. There's evidence that it helps.
It also seems to aid digestion and saliva flow. Studies found that taking ginger could reduce nausea and vomiting in some pregnant women.
But pregnant women should still be careful with ginger. Some experts worry it could raise the risk of miscarriage, especially in high doses
Ginger also seems to help with nausea caused by vertigo. There's mixed evidence about whether ginger helps with nausea caused by motion sickness, surgery, or chemotherapy.
Ginger does seem to help with painful periods. In one study, more than 60% of women felt that ginger lessened pain.