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.
One part vinegar to one part water, mixed together in a spray bottle and applied directly to the sunburn is supposed to be an effective sunburn relief treatment. A few glugs added to a cool bath is another common one.