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• After you have drained a blister, or if it has torn open:
  • Wash the area with soap and water. Do not use alcohol, iodine, or any other cleanser.
  • Don't remove the flap of skin over a blister unless it's very dirty or torn or there is pus under it. Gently smooth the flap over the tender skin.
  • Apply an antibiotic ointment and a clean bandage. If the skin under the bandage begins to itch or a rash develops, stop using the ointment. The ointment may be causing a skin reaction.
  • Change the bandage once a day or anytime it gets wet or dirty. Remove it at night to let the area dry.

Watch for a skin infection while your blister is healing. Signs of infection include:

• Increased pain, swelling, redness, or warmth around the blister.
• Red streaks extending away from the blister.
• Drainage of pus from the blister.
• Fever.