Plan B · Learn
test the building

The away trial

Before you spend money on testing, spend a week somewhere else. If your child gets noticeably better, you have learned something no lab can tell you.

How to run one

  1. Go somewhere known to be dry and clean — not a damp cabin or an old rental, which just swaps one exposure for another.
  2. Take as little as possible from the house. Clothing and soft goods carry spores. New or freshly washed items are better.
  3. Stay at least five to seven days. Shorter is not a real trial.
  4. Track the same symptoms daily you would track at home, so you are comparing like with like.
  5. Then come home and watch the first 48 hours carefully. The return is as informative as the departure.

What the result means

A clear improvement away rules mold IN. No change in a week does not rule it out.

That asymmetry matters. Mold-driven illness can take longer than a week to shift, and a child can also react to something in the new environment. So a positive result is strong evidence; a negative one is weak evidence.

If symptoms improve away and return home, that is among the most actionable findings in this whole field — and it costs nothing.

A real-world version

Families often stumble onto this by accident: symptoms ease dramatically on a trip, or during a stay at a relative’s house, or in a rental. Pay attention to those accidents. If a child’s daily accidents stopped at an Airbnb, that is data.

What to do if it points at the house

Then it is worth spending money on testing — and worth hiring the right specialty. A mold company doing air sampling asks "is there mold in the air today?" A building envelope or moisture investigation asks "is water getting into this structure?" — which is the question that actually finds hidden damage.

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
Find the one biggest driver first
Why treating a PANS child one symptom at a time keeps failing, and how to identify the single driver worth going after before anything else.
What a flare actually is
The signs a PANS child is flaring rather than regressing, what typically triggers one, and what to do in the first 48 hours.

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.