Hi algo_lover, I also noticed that about the post. The approach being discussed is "pain reprocessing therapy". It was described in a book called The Way Out, by Alan Gordon and Alon Ziv. Here's my short summary of the book:

- Chronic pain is often generated by the brain, not any actual injury. Not always, but often. Especially if it gets worse during stress or high alert, and especially if the feeling of pain becomes connected to your fear of that same pain.

- In periods when pain is high, you need to kinda nurse it. Lie down, put warm water on it, whatever it takes. Don't try to power through the pain. Avoid situations where you have to power through.

- In periods when pain is moderate or low, take short sessions to examine it. "Ok, this isn't a threatening injury, this is just a sensation. Where is it located? What shape? Hot or cold? More dull or more like tingling?" Etc, etc. Don't hyperfocus, just explore the feeling in a light and curious way.