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 left outside the body undisturbed will die within 30 minutes. Sperm that is placed or ejaculated near the vagina CAN swim up and enter the cervix under the right conditions, however, unless there is a sperm-friendly medium like Preseed or egg-white cervical mucus (EWCM), it will most likely die due to acids in the vagina.