Hi..
Welcome to HEALTHCARE MAGIC..
I have gone through your query and can understand your concerns..
As per your complain terrible itching in ears and back of throat after eating certain foods is clearing indicating towards Food Allergies..
I would suggest you to consult an Allergist and get allergic tests like
Patch test, RAST test, food challenge test etc can help in diagnosis and treatment can be done accordingly..
The tests will help in ruling out the exact cause of the allergen and once you know the cause of the
allergic reaction you can avoid exposure to it to prevent allergy attack..
Certain foods needs to be eliminated from the diet to prevent the symptoms..
He can be advised to take anti allergics like
benadryl along with
steroid nasal sprays to relieve the symptoms..
He can also be instilled an
Immunotherapy that will help in reducing the severity and frequency of allergic attack..
Once the allergen is ruled out avoiding exposure to it can prevent the allergy symptoms..
Hope this information helps..
Thanks and regards.
Dr.Honey Nandwani Arora.