you certainly got chronic sinusitis
which has a more peculiar manner to be managed. I am afraid persistence of the pain might be an indication of other specific sinus X rays to exclude a sinus collection. Considering the fact you are on an atopic/asthmatic terrain, drugs like flixonase might have to be taken continuosly even up to two years at times. Antihistaminics, steroids
and in case its a collection, a culture and sensitivity test to orient anti biotherapy might be useful.
For the moment, you got to avoid any nasal congestion
, use flixonase as prescribed and see your ENT specialist
for a reevaluation. Delayed treatment could lead to spread of the germ, in case its a collection to near by structures like the brain and could cause meningitis
, ethmoiditis which are serious.
I would suggest you meet an ENT specialist for a reevaluation and discussion of an appropriate management plan,
hope this helps,