If you have an infected cut, it is important to take care of it properly to prevent further complications. Here are some steps you can take to treat an infected cut:

1. Clean the wound: Wash the wound with soap and water, removing any visible debris. You can also use an antiseptic wash or solution to clean the area.

2. Soak the wound: Soak the infected cut in warm water for 10 minutes, three times per day. You can also put a warm wet cloth on the wound. For open cuts or scrapes, use a warm saltwater solution. Put 2 teaspoons (10 mL) of table salt in a quart (liter) of warm water. For closed or sutured cuts, put a heating pad on the wound or use a warm, moist washcloth.

3. Apply antibiotic ointment: Use an antibiotic ointment, such as Polysporin or Neosporin, to prevent the spread of infection. Apply a thin layer of the ointment to the wound.

4. Cover the wound: Wrap the wound in a bandage to protect it and retain moisture. Change the dressing at least once a day, or sooner if its wet or dirty, and keep an eye out for signs of infection.

5. Seek medical attention: If the redness continues to spread or the cut begins to ooze pus, seek medical attention. Don’t try to treat signs of infection in a large cut at home. Instead, see your doctor immediately for treatment. If your infected cut is not clearing up at home, then you may need antibiotics prescribed by your doctor.

It is important to keep the wound clean and dry, and to avoid touching it with dirty hands. If you notice any signs of infection, such as pus, increasing redness, or pain, seek medical attention immediately.