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how to think about it

Find the one biggest driver first

When a child has three infections, a struggling gut, mold exposure and a dozen supplements, everything looks urgent. It is not. There is almost always one thing carrying most of the load.

What "driver" actually means

A driver is the thing generating the inflammation — the root that, if you addressed it, would move the most. It is usually an infection or an immune trigger: strep, Mycoplasma, a reactivated virus, Bartonella, mold.

It is usually not a single low nutrient (those are amplifiers — they make flares worse or better, but rarely start them) and it is not a gene. Genes are the blueprint that makes a child vulnerable; they do not flare on their own.

How to find yours

  1. Look at what precedes the flares. An illness? An exposure? A season? A move? The pattern in your own notes is often better evidence than any single lab.
  2. Look at what has never been tested. In our own data the tests with the highest hit rate — gut, mold, Bartonella — were the ones children were least likely to have been given.
  3. Look at what is measurably abnormal right now, not what was abnormal three years ago.
  4. Look at what happened when you treated something. A partial response tells you that driver is real but not alone. No response tells you to look elsewhere.

Prioritize by more than evidence strength

The right first target is not simply the most likely one. It is evidence × how much it would change what you do × how testable it is.

A speculative idea that is cheap to test may still be worth running. A plausible one you cannot act on is not.

Every recommendation should come with how you will know if it is working and when to change course. If it does not, it is noise.

Then change one thing at a time

This is the part families skip, and it costs them months. If you start three things in the same week, you will never know which one worked — or which one caused the crash.

Hold each change five to seven days before the next. Track daily. The data is the whole point.

Want this answered for your own child? A Plan B synthesis reads every lab and note you have — together — and tells you what is driving the picture, what has never been checked, and what to ask for next.

The first one is free, and you keep the list either way. Phone photos of labs are fine.

Start a free synthesis
Keep reading
It is almost never one thing
In our cohort, 53% of children carried three or more infection or mold drivers at once. Why treating one thing at a time keeps failing.
Some kids collect infections
In our own cohort, children with abnormal immunoglobulins carried nearly twice the rate of stacked infection drivers. The standard blood test most PANS kids never get.
Open the exit before you increase the kill
Why starting antimicrobials in a constipated, under-hydrated child backfires — and the order that actually works: water, bowels, binders, then herbs.

Plan B for PANS is written by a parent, not a physician. Nothing here is medical advice or a substitute for your child's clinicians — it is meant to make you the best-informed person in the room when you talk to them.