Your cat may be in pain or shaken up after an injury and it may lash out when you touch the sore area. This is true even if it is normally sweet tempered. With this in mind, try to enlist the help of a friend or neighbor to hold the cat so that you can concentrate on the wound. Try wrapping the cat in a large bath towel with just the wound exposed. This is a good way to keep it calm and minimize the risk from teeth and claws. Grab your chosen rinsing solution and place it in a bowl. Use a syringe to suck up the solution, and then squirt it over the wound to rinse and clean it. Repeatedly spray the wound this way until you are happy the wound is clean.  Fresh bite wounds need to be cleaned and disinfected, to reduce the risk of infection.  Scrape wounds sustained if the cat was hit by a car or fell from a tree, may be contaminated with grit, gravel, and bacteria. A thorough cleaning to remove contamination helps reduce the risk of complications, such as poor healing or infection. If you do not have a syringe, then soak clean cotton wool in the cleaning solution and squeeze the cotton wool so the solution runs down over the wound. If the area is very contaminated, and this is not lifting the debris away, then use downward stroking movements with the cotton wool to clean the area.  Use a clean piece of soaked cotton wool for each downward wipe, so that the dirty piece does not recontaminate the wound on the next downward pass. Keep cleaning until the cotton wool comes away clean, and then finish with a rinse. If your cat has a burst abscess, a considerable volume of pus may leak from the wound. Use dry cotton wool, gauze, or absorbent paper tissue to wipe away the pus. Apply gentle pressure to the area around the abscess, pressing inward towards the tooth mark through which the pus is draining. It is important to remove as much pus as possible or it will act as an ongoing source of infection. Once you have cleaned away the gross contamination, you can start applying the disinfectant. Follow the directions on the...

TL;DR in Vietnamese:
Nhờ một người khác giúp bạn giữ mèo. Rửa vết thương bằng bơm tiêm. Dùng bông gòn nhúng dung dịch để rửa vết thương nếu bạn không có bơm tiêm. Dùng thuốc sát trùng. Xác định xem có cần băng vết thương không.