Compositions and methods for treating ear infections are disclosed. More specifically, these methods may refer to treatment of internal otitis using an otic composition, such as otic gel for animals and humans. Poloxamer otic gel may be in liquid state at room temperature and may change to gel at about temperature (64° F.) as poloxamer otic gel reaches body temperature, because of the thermo-reversible properties. Consequently, poloxamer otic gel may be an effective treatment in animals and humans, where poloxamer otic gel may reach otitis affected site and remain there for a longer period of time. Additionally, poloxamer otic gel may include APIs such as antifungals, antibiotics and corticosteroids, among others. Furthermore, poloxamer otic gel may be instilled inside the ear, employing calibrated delivery device into the vertical ear canal in order to reach the horizontal ear canal, without puncturing the tympanic membrane.