I've been reading about black currant and it seems to have the same properties as corticosteroids, but with far fewer side effects. It may be worth trying to see if it reduces inflammation in people with Meniere and improves symptoms. The bad news is that I haven't found a single clinical trial on this.
I purchased this supplement and started taking it today. I have also read more about its properties: -It is rich in vitamin C and flavonoids. -It is anti-inflammatory (obviously), but also antiviral, antibacterial, antifungal and diuretic. The truth is that it has all the properties that a Meniere of unknown cause could wish for.