Popping in the ear; Clicking in the ear; Ear fullness; Ear pain; Cause of Eustachian tube dysfunction or blockage include: Allergies; Sinus infections; Ear infections; The common cold Treatment includes home remedies to relieve pain and several maneuvers (swallowing, chewing gum, yawning etc.), which can be done to improve Eustachian tube function.
Definition of pub. 1  1 chiefly British : public house 2. 2  2 : an establishment where alcoholic beverages are sold and consumed.
Pub Med is a free resource that is developed and maintained by the National Center for Biotechnology Information (NCBI), at the U.S. National Library of Medicine (NLM), located at the National Institutes of Health (NIH).. Medline is a term you will often hear associated with PubMed.