My Friend Was Diagnosed With Vertigo ( Inner Ear Infection

my friend was diagnosed with vertigo ( inner ear infection ) about a year ago that they cleared it up with a cycle of steroids and antibiotics... now he has congestion and dizziness again. They tried to the cycle of steroids and antibiotics but didn't phase his symptoms. So today he was out in a boat and all of sudden the trees on the right side started "melting"! He has never tried LSD but said that that is what he would imagine being on acid would be like. He is 43 and also has an anxiety disorder he has been dealing with for about 15 years as well...