The common causes of earache are acute otitis externa, acute suppurative otitis media, auricular cartilage inflammation, etc. Different causes of the different medications, common ceftriaxone, ofloxacin ear drops, etc., it is recommended to consult a doctor in time. 1. Acute otitis externa: acute otitis externa is caused by infection or secondary infection after trauma. Secondary infection caused by the use of anti-infective treatment under the guidance of the doctor, commonly used drugs such as ceftriaxone, clindamycin, etc., while using antibiotic ear drops, such as ofloxacin ear drops, lomefloxacin hydrochloride ear drops and so on. 2. Acute suppurative otitis media: Acute suppurative otitis media usually causes pain, water and pus in the ear canal, and may be accompanied by hearing loss. The general treatment is to use antibiotic ear drops under doctor’s guidance, such as mometasin ear drops, ofloxacin ear drops, and oral antibiotics as prescribed by the doctor, such as cefradine. 3. Auricular chondritis: you can use local alcohol wet compresses, apply a small amount of erythromycin ointment, oral amoxicillin and other drugs under the guidance of the doctor for treatment. Ear pain symptoms, there are other possibilities, it is recommended to consult a doctor in a timely manner to follow the instructions of the medication, not unauthorized use of medication, in order to avoid adverse reactions.