I have been strictly avoiding dairy products for the past year due to
nursing my milk allergic son.  I may need to soon begin taking a
medicine that contains lactose.  Would this be a problem for my son
since it is dairy?  Or maybe not because breast milk already has
lactose?  I will probably be working on weaning him over the next couple
weeks.

Also, if I've become LI since being off milk, will I be able to handle the
medicine myself?  Will the lactase tablets be enough to allow me to
tolerate it?

I found a good article that discusses dairy free while breastfeeding and
resulting LI if anyone's interested at:
http://www.drgreene.com/970124.html