Acupressure for motion sickness (protocol stage)

Allergen injection immunotherapy for perennial allergic rhinitis (protocol stage)

Alternative strategies for drainage of peritonsillar abscess (protocol stage)

Antibiotic treatment for otitis media with effusion in children aged 6 months - 12 years (protocol stage)

Antihistamines as an adjunct to topical nasal steroids for intermittent and persistent allergic rhinitis in children (protocol stage)

Antihistamines for motion sickness (protocol stage)

Antivirals for idiopathic sudden sensorineural hearing loss (protocol stage)

Arterial ligation versus embolisation for intractable posterior epistaxis (protocol stage)

Dietary probiotic supplementation for allergic rhinitis (protocol stage)

Erythropoietin as an adjuvant treatment with (chemo) radiation therapy for head and neck cancer (protocol stage)

Harmonic scalpel versus other surgical procedures for tonsillectomy (protocol stage)

Hyperfractionated or accelerated radiotherapy in head and neck cancer (protocol stage)

Inferior turbinate surgery for nasal obstruction in allergic rhinitis after failed medical treatment (protocol stage)

Interventions for otitis externa (protocol stage)

Interventions to prevent occupational noise induced hearing loss (protocol stage)

Intratympanic aminoglycosides for control of vertigo in Ménière's disease or syndrome (protocol stage)

Medical interventions for the post-surgical management of allergic fungal rhinosinusitis (protocol stage)

Medical versus surgical interventions for nasal polyps (protocol stage)

Oral antihistamines for the symptom of nasal obstruction in adolescents and adults with persistent allergic rhinitis (protocol stage)

Perioperative prophylactic antibiotics in head and neck cancer surgery (protocol stage)

Postoperative chemoradiation for head and neck cancers (protocol stage)

Sound therapy (masking) in the management of tinnitus in adults (protocol stage)

Stereotactic radiosurgery for acoustic neuroma (protocol stage)

Surgery for chronically discharging ears with underlying eardrum perforations (protocol stage)

Surgery for Ménière's disease (protocol stage)

Surgery for vocal cord paralysis and paresis (protocol stage)

Surgical and non-surgical interventions used primarily for snoring (protocol stage)

Surgical interventions for nasal polyps (protocol stage)

Tinnitus Retraining Therapy (TRT) for tinnitus (protocol stage)

Topical anaesthetic or vasoconstrictor preparations for flexible fibre-optic nasal pharyngoscopy and laryngoscopy (protocol stage)

Topical nasal steroids for nasal symptomsdue to intermittent or persistent allergic rhinitis in adults (protocol stage)

Topical steroids for nasal polyps (protocol stage)

Tranexamic acid for epistaxis (nosebleeds) (protocol stage)

Vasodilators and vasoactive substances for idiopathic sudden sensorineural hearing loss (protocol stage)