The nasal cavity (or nasal fossa) is a large air filled space above and behind the nose in the middle of the face.Each cavity is the continuation of one of the two nostrils.he nasal cavity (or nasal fossa) is a large air filled space above and behind the nose in the middle of the face.
Polymyxin B sulfate and trimethoprim (Polytrim) is an antibacterial eye drop prescribed to treat bacterial conjunctiivitis and blepharoconjunctivitis of the eyes. Side effects, drug interactions, pregnancy safety, dosage, and storage information should be reivewed prior to using this medication.
Neomycin is used in the production of the MMR vaccines (MMRVaxPro and Priorix), one of the Pre-school Booster vaccines (Repevax), the shingles vaccine(Zostavax) and the chickenpox vaccines (Varivax and Varilrix). 1  Repevax may also contain traces of streptomycin and polymyxin b. 2  The Nasal Flu vaccine (Fluenz) may contain a trace of gentamicin.