I reached out to my colleague, naturopath Lise Alschuler, Associate Director of the University of Arizona Fellowship Program in Integrative Medicine program, for her thoughts on this question. Here is her answer:
This study by Upadhyay et al. is a well-designed study which builds upon earlier studies...
Our current practice is to begin Boswellia 4200-4800 mg per day if the first post-SRS/SRT MRI shows worsening edema. And if any patients subsequently develop grade 1 radionecrosis later in their follow-up. If a patient has mild symptoms, we also begin Boswellia and use steroids only for refractory c...
I have started using it given the cited data, favoring it primarily in those who have radiographic edema without overt symptomology. I'm not personally at a point where I would skip steroids in the hopes that Frankincense would fix the problem.
Even if it does happen to do nothing, the downsides ar...