@shann this sounds awful. I had extreme thrush four years ago (before my BC days) and nothing got rid of it for months and within two weeks of getting rid of it, back it came. I ended up taking mother apple cider vinegar and yakult. I then treated it again with some anti fungal cream, continued with the yakult and vinegar, and haven't had it since. Not sure if this is the reason for non recurrence but I continue to take it.
Frankinsence is a great natural cell rejuvenator which has also been tested by the "official" medical research and proven to help heal. If you try it make sure you buy one that has been extracted using the steam or press method. Some companies use alcohol to extract which is not going to help at all ( unless you plan on drinking it?). Best wishes