Hello Anna, I treat minor wounds such as scrapes or small shallow cuts by hosing the wound with some running water first. This gets rid of any sand and dirt so I can see how deep/shallow the wound is, and dab it dry with some gauze or a clean towel. After that I clean it with an antiseptic such as betadine. The next day I check for swelling, and signs of irritation. If there's no sign of irritation and little to no swelling I leave it. If it looks a little irritated I will repeat the hosing down and cleaning for another day, if it doesn't get better or get even worse I call my vet.