How can I prevent or treat ear sunburn during outdoor activities?

To prevent or treat ear sunburn during outdoor activities, you can wear a wide-brimmed hat or apply sunscreen to your ears before going outside. Reapplying sunscreen regularly and seeking shade can also help protect your ears from sunburn. If your ears do get sunburned, applying aloe vera or a soothing lotion can help alleviate discomfort and promote healing.