We have a chemical imbalance in our ear so we need to be careful with things that change our balance too quickly. I would rather try to eat a healthy diet than take more medications. I suspect with your level of this disease they could help you a lot with a dieuretic, that worked for me for a really long time. Like 15 years. For you, maybe long enough to get over the active stage of the disease. I remember you had trouble with one or something like that, but I did too, my doctor just kept trying different ones until we found the one I tolerated best. If I were you, before I'd try taking supplements and such, I'd try finding someone familiar with Menieres and see if they can't find some medication that wipes out all your symptoms. They usually try dieuretics first.
You will find literature that Niacin or Vitamin B is helpful. I took megadoses for awhile (per a doctor) and it just made me feel ill. Usually now when you see literature or doctors recommending this, it is an old-school idea, they did not find that niacin really helped us. We need potassium, so you might want to eat foods rich in potassium (banana, kiwi, fruits and veggies).
I'm sure it would not hurt to take a multiple vitamin but I'd be careful with anything that alters your chemistry too much at once, that is what sets us off. I'm WAY afraid to try herbal treatments, I once tried "salvia" which was supposed to be "anti-vertigo", and I ended up being allergic to it and had a big vergito attack.
Dr. Kim always says the biggest thing is stress. It causes the wrong chemicals to go to our ears. So things like your job really do aggravate it. But no, I would be careful trying stuff Deb. That is not a luxury we can afford I'm afraid.