Aloe vera should be applied to sunburned skin about 2 to 3 times a day or every couple of hours for more severe sunburns. It is best to start application as soon as sunburn symptoms appear and continue applying regularly each day until the burn has healed completely, usually for several days (around 3 to 7 days for mild burns). Aloe vera soothes pain, reduces inflammation, hydrates, and helps repair the skin during this healing period. It is also recommended to gently apply aloe vera gel and let it fully absorb before reapplying. For added cooling, aloe vera gel can be stored in the refrigerator before use.