i don't think the 念珠菌 is caused on O-Lac. how long did your baby drink O-Lac?
my baby is drinking al 110 (from nestle) which is similar to O-Lac, without lactose. so far she gains weight much better than drinking 能恩 at the beginning.
pls note that:
能恩 is providing fine protein
O-Lac is lactose free