Hi..
Welcome to HEALTHCARE MAGIC..
As per your complain, yes the symptoms are indicating towards allergies..
Allergic reaction can persist if the cause is not ruled out and allergen is eliminated from body..
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 avid exposure to it to prevent allergy attack..
He can be advised to take anti allergics like
benadryl,
Allegra etc
Do steam inhalations..
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 helps..
Regards.