I must congratulate you for breast feeding till one year. Several millions of mothers are not able to do it. You have assured that incidence of allergic disorder and diabetes
in future will be less for your child and the same time, his academic performance will be better when compared with children fed on cows milk.
I think it could be the formula. Why I am not answering confidently is, your child had tolerated cows milk, then formulas should not cause problems. Or is that the allergy
is just manifesting.
The problem you have described is part of atopic dermatits. Each child is blessed with 4 generations genes. ( father's father and mother & mother's mother and father). If any one in those 4 generation had a allergic problem like asthma
, wheeze or atopic dermatits, then your child is likely develop allergic condition. Greatest insurance against these illness is breast feeding for as much time as possible.
These children do not tolerate chemicals, so be cautious with soap( bar ) used for washing and bathing. Do not use talcum powders or lotions on the body
Avoid indoor dust ( fan, bed sheet, bed, pillow carpets )
If the rashes become very red, itching is severe, there is oozing of fluid or evidence of pus collection consult the doctor.
In general we can over come this problem, though it will keep recurring often.
Lastly, avoid feeding between 11pm to 5 am. At this age children do not require night feeds.
You can try banana around 8 to 9 pm in the night