How many times have a heard this. I have just seen a boy with severe eczema, food allergies, who is quite miserable. His mother is doing the best that she can and each time she takes him to her doctors they say “he will just grow out of it”. How irritating for the parents to hear this each time. This means that his doctor does not know how to manage allergies and is just fobbing these parents off.
The same doctor is unlikely to say “just get over it” to an adult with Rheumatoid Arthritis or Heart Disease. In my opinion, established disease which causes symptoms should be managed – not ignored! Children with eczema and other allergies can very much be helped. Start to think about food allergy/ intolerance.