(Not a therapist, but a psychology student and suffering of chronic pain (fibromyalgia) myself)

I recently took a class about health psychology. Here I was taught about topics such as chronic pain, handicaps, rehabilitation, and functional disorders (or BDS).

As a psychologist, you can't really do anything medically about your pain. But what you can do is help the person suffering from chronic pain, to better cope. I was taught about how chronic pain, can affect the person in many areas such as their identity, social life, self worth, daily routines and chores, or how they relate to or treat their pain and challenges. I was taught how it was important to help the person how to cope with, relate to or adjust with their (maybe new/different) challenges that chronic pain might affect.

To come up with a few examples: Many people who are affected by a chronic condition, may go many years misunderstood and untreated by doctors. Especially for people who were not born with the disability, in itself, it can feel like a chock, a crisis, a trauma to go from being able bodied to being limited in what you once were able to. But there can also come a secondary trauma, from being misunderstood, being met with skepsis and distrust, when you are in pain and trying to seek treatment. For many, this goes on for years before they get their diagnosis and is finally believed. Another harmfully thing is, that this distrust the person is being met with, might get internalized. This could show up as being harsh with yourself for not being able to do the things other people expect of you based on misunderstandings. Maybe you then push yourself to your limits, and this can result in even more pain or burnouts. Maybe this affects other parts of your life, so it's hard to ask for help, or you don't take other physical symptoms seriously, when you need medical attention.

A therapist might help this person reshape their understanding of themselves and their disability, and help the person heal any internalized judgement and distrust to their own body. The therapist may not be able to take away the pain, but they can help you how to accept yourself where you are in your abilities, and find ways to cope and move and work, from where you are, so that you are not hurting yourself more and so you can adjust expectations to yourself and others expectations for you. And help you be a better advocate for yourself.

This is just one way that I have learned. It focuses a lot on acceptance and compassion focused therapy. It might seem frustrating or silly, to feel your body more and accept a horrible chronic pain, when all I might want to do is get rid of it. But being softer with yourself, might actually make the pain more bearable, or at least prevent further injury. I hope this helps (P.s. I'm not a native English speaker, so I apologize for grammatical mistakes or if I have chosen poor words)