The pain behind the ear when wearing glasses is clinically considered to be the following: 1. The patient’s frame is too small, squeezing the back of the auricle, damaging the skin on the surface of the auricle as well as the cartilage, resulting in a local breakage and an inflammatory reaction to the infection, resulting in a painful sensation. In this case, it is recommended that the patient wears a larger frame, and the back of the auricle can be disinfected with iodophor, and topical antibiotic ointment can be used topically for anti-inflammatory treatment. During the treatment period, try not to wear glasses to avoid re-infection. 2, the patient’s auricular skin and frame allergic reaction, thus inducing local skin exudation erosion, once the infection, thus appearing pain, for this case, it is recommended that patients wear non-allergic frames to avoid the reappearance of allergic reaction.