Whether the pain after water in the ear will recover on its own depends on the specific condition. If you have pain after getting water in your ear, consider an acute infection in the external ear canal. Patients can first observe the change in their condition on their own. If the infection is not severe, some patients can recover on their own by keeping the ear canal dry and clean, avoiding further water ingress, and avoiding physical stimulation, such as pulling out the ear. If the pain is obvious, or if there is no sign of self-healing after 2-3 days of observation, or if there is a tendency of gradual aggravation, the patient can go to the ENT department of the hospital for an examination and wait for the doctor’s interview to clarify whether acute otitis externa has formed or whether it is combined with acute otitis media, and then provide symptomatic treatment and, if necessary, timely medication. Patients must pay attention to the health protection of the ear canal and avoid getting water in the ear, especially after washing hair, bathing or swimming. In addition, it is recommended that patients wear ear plugs for swimming to avoid water in the ears.