13 hours by plane 6 days ago and still have feeling of moving with nausea. any treatments or cures?

Rest!Rest & more res: t.You have to reset your internal clock. You've just crossed over 6 time zones or more and your body is still operating as if it's in the original time zone just 12 hours later! So it wants to sleep during the day, not be up and running around.Honor your internal clock.You can benefit from motion sickness type OTC like Dramamine (dimenhydrinate) or meclizine that'll make you tired.Trans scopolamine might help too.

Likely inner ear: Does your ear or ears feel blocked still. This is a major cause of nausea, especially if the ear becomes infected. Altitude and pressurized cabins can wreak havoc with our middle ear (the area behind the eardrum), especially if the eustachian tube that drains the middle ear into the throat and keeps interior and exterior pressures equalized, gets blocked from a cold or allergy. Meclizine can help