Your symptoms and the raised eosinophil count
would be consistent persistent allergic rhinitis
with asthma. The IgE test helps only to document atopy but does not tell you what you are allergic to. You need specific IgE tests against the aeroallergens panel (definitely to moulds) or skin prick tests to identify the allergens.
Lung function tests with reversibility studies are also required. a CT scan paransal sinuses is currently not required if there is no loss in smell and complete nasal blockage.
180mg in the morning followed by nsaonex spray 50mcg / spray 1 spray / nostril once daily and montelukast
10mg at night should suffice. You can use Olopatadine
eye drops upto three times a day if required.
You should consult an Allergy specialist or a respiratory physician with interest in Allergy.