Hi Maureen,

        I do not think there should be problems using some sort of combination
decongestants while breastfeeding.  There has been some talk of some
antihistamines decreasing milk supply, but I have not found any clinical
correlation.  Most women take antihistamines without problems with their
milk supply as far as I can see.  The amount of these medications which
appear in the milk is really tiny.  We use triaminic, for example,
frequently, even in small babies, though I don't think we should.  Side
effects do occur, but not too commonly. The baby gets much much less in
the milk than he would get from triaminic.

        Rebound, and decreasing effect can occur even with pediatric otrivin.
Used regularly, even within a week or so.  When I suggest otrivine, I
usually say to use it only when absolutely necessary and no more than a
week or two at the most.  Ideally, it should be used only at night to
help the mother (patient) sleep.  It is a good preparation, but should
not be used with abandon.

        Desensitization is perfectly compatible with breastfeeding.  Even if
some of the protein gets into the milk, the quantity would be very
minimal, tiny, miniscule.  Most of that miniscule amount would not be
absorbed.

        Hope that helps.

Jack Newman