Nimmo info sites-
https://www.google.com/search?client...ed=0CGUQ1QIoAA
Generally you treat the most painful TrPs first, then often that will bring up the latent ones, so then those will need to be addressed.
If you also find poor posture to be an issue , head/shoulders hunched or rolled forward.. that needs to be addressed too. That alone can stress the upper back muscles like the rhomboids, which will give a burning/ boring pain under the shoulder blades..