Not long: Sperm don't live in the air, on clothes, or on other items. Their natural habitat is warm, fresh semen... not on household objects. Therefore, fresh semen on hands, penises, condoms, etc., that is quickly put into a vagina can still lead to pregnancy.
3. Decrease the Inflammation. At the first sign of sunburn, taking a nonsteroidal anti-inflammatory drug (NSAID), such as ibuprofen, naproxen or aspirin, can help with discomfort and inflammation, says Dr. Brackeen, who practices at the Skin Cancer Institute in Lubbock, Texas.
1 Like milk, yogurt applied to sunburned skin also can be soothing.  Vitamin E is an antioxidant, and can help decrease inflammation caused by sunburn. Use Vitamin E oil on the skin, or take a regular dose of the supplement. Vitamin E oil also can be rubbed onto peeling skin.