Women's Royal Voluntary Service. n a British auxiliary service organized in 1938 as the Women's Voluntary Service for work in air raids and civil defence: active throughout World War II and since 1945 in providing support services for those in need: became the Women's Royal Voluntary Service in 1966, (Abbrev.) WRVS.
Clean the wound. Using a syringe or other field expedient device, irrigate the wound with clean water in order to remove debris. Antiseptic can also be applied to lessen the likelihood of infection. Apply a pressure bandage directly over the wound (with guaze, and preferably a hemostatic agent, packed into the wound).
There are several good ways to do this: Use a bulb syringe (available in most drug stores) filled with warm tap water or normal saline (you can use a large bottle of saline solution for contact lenses if you're in a pinch). Squeeze the liquid out onto the wound. Repeat for a volume of approximately two liters.