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.
In the UK a Pub is a licensed public house. They are often given quirky names like the King's Arms, Bear and Ball, or The Moon and Stars. There is likely to be one near your home, assuming you live in a residential area.