Cyst in Sinus

My husband has been seeing a GP for about 3 months regarding severe allergy and sinus probles which he has experienced for many years.  The symptoms included wheezing, severe post nasalJuvenile angiofibroma
Nasal cpap
Nasal anatomy
Nasal biopsy
Nasal congestion
Nasal discharge
Nasal fracture
Nasal mucosa
Nasal mucosal biopsy
Nasal polyps
Nasal spray flu vaccine drainage, ichy eyes and ichy skin, and general lethargy.  The dr. prescribed AllegraAllegra
Allegra -d 24 hour
Allegra odt
Allegra-d
Allegra-d 12 hour
Allegra-d 24 hour, Singular, Flonase, and one other inhaler which has recently been switched to a different inhaler which I don't know the name of.  The medication relieved the wheezing and itchingCauses of vaginal itching
Eye burning - itching and discharge
Itching
Jock itch
Muscle twitching
Vaginal itching, but not the sinus drainage or lethargy.  The dr. has also treated the drainage with 2 courses of antibiotics for infection.  The drainage is often thick white with yellow and green and sometimes blood.  After all this, the drainage has not been alleviated whatsoever.  The dr. ordered a sinus CT scan which shows a slightly deviated septum and a cyst in his sinus (not sure which one).  The dr. has now decided to send my husband to an allergist for further treatment of his symptoms.  I am concerned that this is not the best course of action.  His allergies have been relieved, but not the sinus drainage.  I am wondering if maybe he should see an ENT specialist instead.  We are both growing very frustrated with this course of treatment,  and would like to see his problems relieved.  What do you suggest?