What Every Therapist Should Know!

How Immune Responses Turn Pain Chronic — and why “just reduce inflammation” isn’t the whole answer

As therapists, we’re basically trained to treat inflammation like it’s the villain.

Swelling? Calm it down.

Irritation? Shut it off.

Inflammation? Bad.

But chronic pain makes this messy.

Because a lot of chronic pain isn’t “too much inflammation”…it’s inflammation that never finishes. The cleanup crew shows up… and then nobody clocks out. And when immune activity hangs around too long, the nervous system starts acting like everything is a threat — even when the tissue itself has technically healed.

So how does chronicity happen?

1) Inflammation leaves “breadcrumbs” that keep nerves spicy

Immune cells (neutrophils, mast cells, macrophages) release chemicals like histamine, prostaglandins, cytokines… all of which can make nociceptors extra jumpy.

Translation: the alarm system gets touchy.

2) The nervous system learns the pattern

If that irritated environment sticks around, pain-sensing nerves start firing easier and faster.

Now your client is like:

“Why does this hurt when I barely moved?”

Exactly. The threshold dropped.

3) Then the brain/spinal cord turns the volume up too

Once things are going long enough, the spinal cord + brain can start amplifying the message. Not because your client is broken… but because the system got really good at protecting.

And protection feels like pain.

So…are anti-inflammatories the answer?

Sometimes they help, sure.

But if the only goal is “turn inflammation off,” we can accidentally miss the bigger point.

Because the body doesn’t just need inflammation…it needs resolution.

There’s a difference between-

“stop the fire”

and

“finish the job, clean up, and rebuild.”

If the system never completes that transition, you can end up with a stuck loop: immune noise → nerve sensitivity → more guarding → more threat → more immune noise. Fun.

A better goal - help the system resolve

For chronic pain folks, sometimes the win isn’t “less inflammation at all costs.”

Sometimes the win is the right input, at the right dose, so the system can finally shift gears.

Controlled therapeutic input (manual therapy, movement, loading, etc.) can help the body-

change the local signal environment

reduce sensitization

and nudge the system toward “okay… we can stand down now.”

Therapist takeaway

Chronic pain isn’t just “inflammation = bad.”

It’s more like -the wrong kind of inflammation that never wraps up.

And as therapists, we’re not only working on tissue.

We’re influencing the neuro-immune loop —the conversation between immune signals and the nervous system.

That’s why strategic manual work (including RAPID when it’s the right fit) can help reboot the system and move someone toward actual resolution…not just temporary quiet.

(And yeah… this is where things get interesting.)

Til next time...

Rob and Sherry