A cat with a head that suddenly cants ten degrees to one side, who stumbles when she turns, whose eyes flick back and forth like a metronome — this is one of the more frightening things a cat owner can wake up to, and it almost always traces to the same place: the middle or inner ear. This is a complete guide to feline ear infection — from the common yeast (Malassezia) and bacterial otitis of the outer ear, to the deep otitis media and interna that triggers vestibular disease and loss of balance — covering what causes it, how to tell a surface nuisance from a deep infection that threatens balance and hearing, a clear best-practice integrative treatment protocol, and how the herbal natural-rearing tradition of Juliette de Bairacli Levy can be woven, honestly and safely, around the veterinary care these infections genuinely require.