The causes of pain behind the earlobe are: 1. If the pain behind the earlobe cannot be relieved by pain medication, and after a few days the painful area grows clusters of papules, it is considered to be herpes caused by viral infection, you can use acyclovir ointment to rub the affected area or take acyclovir capsules orally. 2. If the pain behind the ear is accompanied by hearing loss and tinnitus, it is considered to be caused by otitis media, so in addition to oral anti-inflammatory drugs to relieve pain, you need to keep the nasal passages open. Use cotton swabs to wipe away the water that enters the outer ear canal after each bath or swim to help the condition recover and prevent further aggravation of the condition that may lead to perforation of the eardrum.