CBD oil for RSD/CRPS?

Can anyone give advice/suggestions as to HOW to use CBD oil for RSD?

I bought a 2500 mg bottle and so far, it hasn’t helped (and I realize it may not, as everyone responds differently). I tried 1-2 drops initially, and have been increasing slowly and am up to 10 drops at a time, but still no relief from the burning pain.

Any insight would be greatly appreciated.