Lead poisoning. Help!

Hi there, my baby age 1 year old. She had the recommended blood test for lead. The pediatrician diagnosed lead poisoning level 17. I suspect her lead source is from my husband's working. He works in construction. he comes with dirty clothes that might have lead paint or powder.

The doctor recommends the baby to take iron supplements from pharmacy. What do you think about it?

so I need to first detoxify the baby, my husband and myself.

What things I can do at home? I want to get the baby's lead to be zero if possible!
I can't afford any fancy practitioner yet, so that why I am asking for what can be done at home.

thanks for any immediate help!

Sara