Summarize this article:

Wash your ginger root with cool water and peel the skin with a potato peeler. Cut the ginger root into 1⁄4 inch (0.64 cm) thin slices, then add some salt on top. Eat the ginger plain or add it to a salad for an extra kick.  Eating plain ginger is the fastest way to get it into your stomach if you aren’t feeling well. Although ginger ale is sometimes marketed to help with stomach aches, the added sugar can be too harsh on your body and make you feel worse. Plus, ginger ale doesn’t usually have a lot of fresh ginger in it. Try taking a 250 mg dose when your stomach first starts feeling upset. Wait about 30 minutes for the capsule to dissolve in your stomach before you start feeling the effects. You can take up to 4 capsules per day at a 250 mg dose. Ginger capsules contain powdered ginger. They may make you feel bloated, give you heartburn, or make you feel more nauseous. Look for crystalized ginger candies or hard candies flavored with real ginger at a grocery store. Hold one of these candies in your mouth and let it dissolve when you first start feeling nauseated.

Summary:
Eat some fresh ginger for an easy option. Take ginger capsules when you feel nauseated. Suck on ginger candy for an incremental dose.