Candied ginger is great.

Huffing ginger in any form can be helpful.

Stirring this into seltzer at various strengths is a big hit 'round here: [link] It also makes its way into cream of rice when not much food feels like staying down.

You can also keep alcohol wipes handy. If you rip one open under your nose and take a good hard whiff it can stop vomiting in its tracks. My aunt the nurse taught me that. It doesn't work forever, but it'll keep someone from booting on you or while you're moving them to a preferred booting locale.

I do like the Gin-Gins hard candies that Steph linked.

I also like these, from Tummydrops: [link]

I should probably try this. Any time I get any way under the weather, my system at least debates a vomit. Maybe my stomach's like Dawn all "GET OUT! GET OUT!"

The ginger mints from Trader Joe’s are very good, and I recently found ginger chews at the Dollar Store that are also very nice.

I strongly recommend getting a few rx meds from your doctor. Like maybe it won’t be an issue but maybe you can head it all off with a tiny number of pills.