Oil of Oregano is very strong!! I used it to treat bronchial infections and even a brown recluse bite! Boy did that hurt!!! I used it once during my Lyme treatment, and I was sure glad to be off of it after only a few days! It caused a bad herx for me.
If you choose to use this, be sure to only use a very small amount, but since your appt is so close, why not wait and see what your doc has to say?
And I would suggest that if you do buy it, get the capsules!
The liquid must be taken with another oil (as oils won't mix with water), and even then it burns going down and leaves a terrible taste in your mouth. But it's good stuff! LOL!