Hi -

It's very common, after an infection, to develop "secondary" lactose
intolerance.  This normally passes after a few weeks.  However, it can
also mutate into "primary" lactose intolerance in an individual who would
normally be developing lactose intolerance anyway.

The problem with lactose intolerance is that it can be mild or acute.  If
it's mild, you can eat hard cheeses (which are low in lactose) and lactose-
reduced problems with little or no difficulty.

But the thing that is of concern is the symptoms your child is getting.
Lactose intolerance produces strictly gastric symptoms.  Milk protein
allergy is more likely to be the source of rashes, etc.  (And may or may
not show up on an allergy test.)

I'd cut out all forms of dairy from your daughter's diet competely, I'm
afraid.  Even the dairy hidden in processed foods, at least for now.  See
how things go.

Allergies can develop at any time of life, unfortunately.  They are often,
but not always, triggered by disease.  Or it may be that your daughter already
had a dairy allergy but that it has recently become bad enough that it's
more noticable.

I hope this helps.  Good luck.
--Beth Kevles
  [log in to unmask]
  http://web.mit.edu/kevles/www/nomilk.html -- a page for the milk-allergic
  Disclaimer:  Nothing in this message should be construed as medical
  advice.  Please consult with your own medical practicioner.

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