A pimple on the ear considers the following diseases: 1, folliculitis, pimple manifestation in the form of cone, the top can have small pustules, accompanied by a certain pain, due to Staphylococcus epidermidis, Staphylococcus albus and other bacterial infections caused by the topical clindamycin phosphate gel, compound polymyxin B ointment. If the pain is more intense, accompanied by swollen lymph nodes behind the ear, you need to take oral penicillin V potassium tablets, amoxicillin capsules for treatment. 2, common warts, gray-white or gray-brown, the surface has a coarse granular roughness. In the clinical treatment can be topical vitamin A acid ointment, salicylic acid ointment, mixed recombinant human interferon alpha 2b ointment, imiquimod ointment for treatment, you can also choose the way of liquid nitrogen freezing, the treatment of warts necrosis off.