When you accidentally chafe your skin, proper treatment can help prevent infection and promote healing. Here are the steps to treat a bruised wound:

1. ** Wash hands ** : Before treating the wound, you should first wash your hands thoroughly to prevent bacteria from entering the wound.

2. ** Clean the wound ** :

- Rinse the wound with clean water to remove dirt and bacteria.

- A mild soap can be used to assist in cleaning, but avoid direct contact with the wound as this may cause irritation.

- After cleaning, gently pat the skin around the wound dry.

3. ** Disinfect wounds ** :

- Gently wipe the skin around the wound with a disinfectant such as iodophor, alcohol, or hydrogen peroxide to disinfect and reduce the risk of infection. Be careful not to pour the disinfectant directly onto the wound, as this may irritate the wound and delay the healing process.

4. ** Protect the wound ** :

- For smaller abrasions, a Band-aid or sterile gauze can be used to cover the wound to protect it from outside contamination.

If the wound is large or deep, it may be necessary to use medical tape or bandages to secure the gauze and seek medical attention promptly.

5. ** Observe the wound ** : During the wound healing process, regularly check the wound for signs of infection such as redness, swelling, fever, and suppuration. If these symptoms occur, seek medical attention promptly.

6. ** Keep the wound dry ** : During the healing period, try to keep the wound dry and avoid prolonged immersion in water.

7. ** Update the dressing ** : Change the dressing regularly according to the specific condition of the wound to keep the wound clean.

8. ** Avoid scratching ** : Try to avoid scratching wounds, as this can lead to infection or scarring.

9. ** Supplemental nutrition ** : Maintain a good diet and consume enough protein, vitamins and minerals to promote wound healing.

10. ** Rest and recovery ** : Give the body enough time to rest and recover, avoid overuse of the injured part.

In short, the key to treating a bruised wound is to keep it clean, disinfected and protected from external contamination. If the wound is large, deep or shows signs of infection, seek medical attention promptly.