Here is what the Compendium of Pharmaceutical Specialities (Canadian
PDR) says about this drug:

"...oral bioavailability of fluticasone approaches zero due to poor
absorption and extensive first-pass metabolism".  This means that even
if some does get absorbed into the mother's circulation, and even if
some gets into the milk, the baby will not absorb it.

No problem.

Jack Newman, MD, FRCPC