After a bout of BPPV and bad vertigo, I researched causes of this and found that like MM, the herpes virus can be a contributing factor. So I went to the doctor who gave me a script but warned they are no longer on the Australian pharmaceutical benefits list and would cost almost $400! Darn...there went that plan. How do other Aussies manage taking anti virals? I guess I'll have to resort to the lysine as per JOH's recommendations.