Cats get wounded quickly and often (usually through fighting, by getting caught in bushes or being attacked by other animals), particularly when out of sight or left outdoors. Seeking professional attention, although preferable, requires precious travel time and money. Therefore, knowing some basic cat wound treatment might just save the animal's life.
Sterilize your hands and equipment. Keep a towel and a friend nearby to restrain the animal if necessary. Put on medical gloves. If the cat rebels, wrap it in the towel completely, including the head, exposing only the injury.
Check the size and depth of the injury. For large or deep wounds, apply pressure if there is profuse bleeding or spurting blood (arterial bleeding.) If it's an extremity, apply a tourniquet. Take your pet to an emergency veterinarian's office immediately for help. For smaller wounds, trim the hair away from the edges, using electric trimmers or small cuticle scissors. Start next to the wound and proceed outward. Gently flush the area with warm, clean tap water, or a water-habitine solution. If there is a scab, squirt up under it with a small syringe full of warm water. Let it soak for a few minutes then remove the scab and any dead tissue, pus or other foreign matter with a sterile pad or cloth. Finish by applying an antibiotic ointment. Wait a few minutes, then apply a liquid bandage made for animals to the wound.
Continue caring for the cat. Inspect the wound area and remove any scabs. Clean using tap water or Betadine solution (one part solution to 10 parts water) every 12 hours, replacing the old bandage with a new one. Do this for two or three days.