Please help! what is the best way to treat a sun burn located on a persons back by using lotion?

Sunburn: Keep sunburn cool w moist cool/cold compresses. Avoid alcohol containing products. Break off pieces of aloe vera plant & apply sap to skin. Consider non-steroidal anti-inflammatory meds to reduce pain. Don’t yank off peeling skin or burst blisters. Seek med care for severe pain, fever, lack of improvement of sxs w/i several days or if a large surface area is blistered. Drink H2O.

Cool and moisturize: Topical cooling will relieve pain immediately. Refrigerated aloe works best. For highly sensitive areas a topical anesthetic can be used under a physicians direction. Oral antinflammatories such as Ibuprofen can provide relief over the first few days. After cooling apply a rich moisturizer such as aquaphor or biafine.