It will be very difficult for dizzy patients to hear that they should keep doing their daily activities when their symptoms flare up. Their first instinct is to become inactive and take rest days. What will help your vestibular system is to rest until your symptoms settle down and then go back to your normal activities.
When you become active, you are training your brain to get used to different incoming signals. This in conjunction with daily vestibular exercises will help with rehabilitation of your vestibular system.