this is bad

“P6 and auricular acupressure is an effective complementary therapy in reducing and controlling chemotherapy-induced nausea and vomiting”

Plenty more on PubMed with search “p6 nausea review”

while plenty of acupuncture and acupressure are woo, the anti-motion-sickness wrist bands aren’t. there is decent medical evidence that pressure on the P6 point helps reduce nausea.