Hi
IgE is elevated due to many reasons, allergy being the most common
Special igE tests might be to rule out any fungal specific causes like aspergillus
If you have recurrent allergic symptoms which is worsening your quality of life, its better to do a allergy panel test to foods and inhalation
Next Steps
Kindly get an allergy panel test, pulmonary function test and an ent evaluation to assess upper airway
Health Tips
Try to keep your indoor clean, with dust prophylactic measures