How does it compare against a placebo in a double blind trial? This is simply a single case report with no comparison.

Chiropractic remedies have a long history of being questionable.

Wikipedia provides many sources:

> Systematic reviews of this research have not found evidence that chiropractic manipulation is effective, with the possible exception of treatment for back pain.[4] A critical evaluation found that collectively, spinal manipulation was ineffective at treating any condition

> It is frequently associated with mild to moderate adverse effects, with serious or fatal complications in rare cases.

https://en.wikipedia.org/wiki/Chiropractic