Yes she can. This is a surprisingly common question.
Try doing an advanced search using the key word "Relactation" or "Re-lactation" or possibly "Re-Lactation". Using the advanced search allows you to narrow the search to the BF'ing boards. Of course, Relactation is a fairly specific term you will most often see on the BF'ing boards so you could probably do a general MDC search and still find what you need.
Are you asking out of curiosity or is this something she is at least considering but needs some information to think about it?
If you can't find any recent threads PM me and I'll look it up for you.
~Cath
