I don't know that I have seen all of the posts regarding baby O- I don't 
know of other symptoms besides weight loss and a diaper rash. However, 
in cases where it seems that the baby has significant intolerance 
symptoms to breastmilk, particularly weight loss,  I would suggest an 
allergy evaluation for skin testing. I have had some babies in my 
practice with the same story who are profoundly allergic to many foods.
BTW, diaper rashes that appear to be a burn around the rectal area in 
nursing babies are typically due to citric acid in mom's diet, such as 
citrus fruits, citrus juices,  tomatoes, and foods with citric acid such 
as candy and soda. IT can also be due to the infant's poor food 
absorption, causing diarrhea and acidic stools.
  I would also suggest a urinalysis for organic acids, and a blood test 
for amino acid levels to help rule out a metabolic syndrome, given 
weight loss at this age. This would be especially important if there is 
developmental delay.
If the baby is having bloody stools, please see the new Academy of 
Breastfeeding Medicine protocol on allergic proctocolitis, www.bfmed.org.
Anne

Anne Eglash MD, FABM, IBCLC
Clinical Professor
Dept of Family Medicine
University of Wisconsin School of Medicine and Public Health
600 N. 8th St.
Mount Horeb, WI, 53572
608-437-3064 (O)
608-437-4542 (fax)
608-550-3054 (pager)

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