I have long been convinced of the link between colic and cows’ milk allergy (GP, 6 October).
Symptoms usually start about five days after the change from breastfeeding to bottle feeding.
A week of hydrolysed protein formula milk followed by standard formula milk again, would establish the diagnosis.
I even had one infant who developed the typical iris-like lesions of erythema multiforme with formula milk.
Dr Judith Langfield