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.
Use three tablespoons of coconut milk, one tablespoon of aloe vera, and one tablespoon of fresh cucumber pulp. Temporarily store your sunburn treatment in a spray bottle and refrigerate after each use. Do not attempt to save this for next year's sunburn though; this treatment is highly perishable.