My dad swallowed some fluoride at the dentist and he feels like he's going to vomit. so far i have him resting but i'm not sure what to do. what can i do to make him feel better?

Rubbing alcohol: There are prescription anti-nausea drugs that can be provided if the symptoms are very severe. Sometimes small inhalations of Isopropyl alcohol (rubbing alcohol) can help! Try soaking a paper napkin in isopropyl alcohol and 3 nasal inhalations every 15 mins and may repeat twice. https://www.aliem.com/trick-trade-isopropyl-alcohol-vapor-inhalation-nausea-vomiting/

WATER-WATER : The fluoride was a small portion so don't be so alarmed. Have him drink a lot of water to flush it out of his system and take some mints to reduce the nausea.