Betahistine/Serc

I am interested in trying betahistine but only using it as needed when a vertigo attack hits. Has anyone used it in this way and had it help the room stop spinning?😣 I would also love a rescue med for when I’m flying because having a vertigo attack on an airplane is my worst nightmare. If there’s any other remedies that have helped in situations like this, please let me know🙏🏻