After adjusting your child to a suitable formula, give his or her condition time to get back to normal like you would a healing cut. Studies have shown an improvement of eczema and disappearance of other symptoms (e.g. vomiting, diarrhoea) within 3 days on an AAF. Another study shows resolution of CMA-related gastrointestinal symptoms within 14 days on an AAF. But be careful: do not stop feeding the suitable formula the minute your baby’s symptoms have disappeared – they could be back in a flash. Your child's doctor will advise you on how long stick to it.
EHF can be potentially allergenic in some children with CMA
If your infant is on an extensively hydrolysed formula (eHF) and symptoms do not improve after two to four weeks, your doctor might consider switching to an amino-based formula (AAF).If symptoms do not disappear on AAF, it is time for another look at the diagnosis.