If someone has genuine positional vertigo, get it treated, and do not expect the treatment to touch their ADHD. Both things can be true at the same time.

Neurofeedback rests on a tidy idea: in ADHD the slower theta rhythm shows up when the faster beta rhythm should be running, so the training rewards you for shifting the balance. Knowing the idea is worth a few minutes, because it is what the brochure is built on.

Turn the socks inside out so the seam sits away from the toes, cut the label out and print the size onto the fabric instead, and look at seamless clothing. These cost pennies against a course of therapy and they work by teatime.

Headsets have become cheap enough to sit in an ordinary consulting room, and the use with the best backing is graded exposure. You can set the intensity exactly and repeat it as often as the person needs.