Cough is a protective mechanism of body by which body tries to through out some unwanted particles or organisms, which has entered into body through nose or mouth.Usually ,it should not be suppressed by giving medicines.It requires treatment,only when it becomes disturbing and interferes with d ay to day activities or it disturbs the sleep of child or adult..There is a usual habit of purchasing cough syrup and giving it to child.This practice is wrong.On one hand ,it is not the treatment of disease causing cough and on the other hand it can suppress cough temporarily and increase the disease causing cough.Sometimes it can adversly affect the body and mind.There are many causes of cough in a child,which should be diagnosed and treated,cough will go.Cough is a symptom,not a disease..So,always consult your doctor whenever your child has troublesome cough..
Milk,curd or Banana are not responsible for producing or increasing cough in children or adult.If a person has proven allergy to any of these three,it shoud be avoided,as it may produce or increase cough in that case.Banana contains a substance which breaks the substance responsible for breaking down histamine.Thus ,it may increas the level of histamine in body,which may increase the cough,if the child is already coughing.
So,if a child is not allergic to milk,curd or Banana,these should not be prohibited in diet.