Can Hydrogen Peroxide Be Used On Cat Scratch. This will help get rid of any congealed discharge. Wet the fur with the hydrogen peroxide, let it sit for a minute or two, and then gently wipe or comb the bloody discharge from the fur.

Wash around the wound with soap. See a doctor if you can't remove all debris. If the cut is older and scab over, clean the wound using a cotton swab dipped in hydrogen peroxide diluted with water.