Keeping the affected area clean and dry can usually help reduce skin redness. If an infection is the cause of your skin redness, your doctor may prescribe antibiotics to reduce the infectionâs symptoms. 1  1.
1 Exposed to air, on a cold surface or clothing, for example, sperm usually die within minutes. 2  In a closed and clean container at body temperature, sperm can survive for 4-6 hours or even more.  Sperm can be frozen at extremely low temperatures (but not in the refrigerator) and survive for years.
Sperm can live up to 20 minutes outside the body, but if it has dried on the hands then it is dead. If you wipe your hands they will likely be dead too. If you wash your hands â¦ you can be almost certain it is washed away or dead! 16 people found this useful.