If you wear earplugs that fit the shape of your outer ear canal, this condition is not harmful and you don’t need to worry about it. However, if you use earplugs that are not suitable for you, wearing them for a long time may lead to damage to the skin of the external ear canal, so when choosing earplugs, make sure to choose ones that fit the shape of your external ear canal. If once there is an infection, it is recommended not to wear earplugs for the time being. Topically, you can use anti-inflammatory ointment to apply, such as Bactrim or erythromycin ophthalmic ointment. Keep the ear local clean, hygienic and dry, if there are conditions, you can do a physical therapy, on the recovery of inflammation is also helpful, do not get water in the ear during the treatment, avoid eating spicy, stimulating food.