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, polymyxin, and bacitracin combination works by stopping the growth of bacteria. Neomycin, polymyxin, and bacitracin combination comes as an ointment to apply to the skin. It is usually used one to three times a day. Neomycin, polymyxin, and bacitracin ointment is available without a prescription. However, your doctor may give you special directions on the use of this medication for your medical problem.