Hello and Welcome to ‘Ask A Doctor’ service.
I have reviewed your query and here is my advice.
IgE test indicates presence of an
allergy. The
immunoglobulins suggest absence of bacterial viral infection. So don't worry. Your son has asthmatic symptoms caused by allergy which can be controlled by detection, avoidance, and desensitization of allergens.
So, I feel instead of controlling the symptoms by
steroids and nebulization, he should be subjected to allergy detection test to recognize things he is allergic to. This needs to be followed by self-help by avoiding the allergens and desensitization treatment advised by expert.
Respiratory exercises (pranayama) and healthy permissible (excluding food allergens) diet would raise the resistance and offer health.
Preventive medicines for avoiding symptoms and active treatment during exacerbation would offer him normal life.
Hope I have answered your query. Let me know if I can assist you further.
Regards,
Dr. Vasudha Jayant Athavale