modular homes high in formaldehyde

I have a friend who, along with her family and the dog, have suffered much the past few years. The doctors gave them no idea as to what was causing their health issues. They had numerous symptoms, watery eyes, headaches, blood disorders and their dog had seizures and finally died. They had suspected that perhaps it might be formaldehyde poisoning, after news from FEMA and Hurricane Katrina, which stemmed from either carpets or kitchen cabinets. They own a modular home. They have conducted expensive tests and they show that the formaldehyde level in their home is four times higher than the acceptable rate.
What can be done about this problem in many homes when many people are totally unaware of what is making them ill? Our friends have now learned that there are many other people who have modular homes in the area who suffer the same health issues as they and again, doctors have no clue as to what is doing it.
Do you have any advice?

escaped FEMA trailer to get modular home with same problems

So post Katrina,

I am required to live in a trailer that was full of formaldehyde. So in an effort to get into a home as soon as possible, I buy what is touted as a modular home.

When I move in, after paying in full for the house, I find that my modular home has formaldehyde warning signs on all the walls. What's up? So I take the signs down , open the windows, and run the air conditioner cause it is 90 degrees outside with 90 percent humidity in New Orleans in July and August. I can't afford to AC my neighborhood, so I close the windows and the cough that I have had off and on since
Katrina will not go away. It is a constant tickle in my throat.

Lord help us!

Thanks to this group, I have been able to order testing kits to see just how much toxins I am living with or slowly dying from.

Elizabeth, erhodes@xula.edu