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Blisters (cont.)

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Check Your Symptoms

Home Treatment

Most blisters heal on their own. Home treatment may help decrease pain, prevent infection, and help heal large or broken blisters.

  • A small, unbroken blister about the size of a pea, even a blood blister, will usually heal on its own. Use a loose bandage to protect it. Avoid the activity that caused the blister.
  • If a small blister is on a weight-bearing area like the bottom of the foot, protect it with a doughnut-shaped moleskin padClick here to see an illustration.. Leave the area over the blister open.
  • If a blister is large and painful, it may be best to drain it. Here is a safe method:
    • Wipe a needle or straight pin with rubbing alcohol.
    • Gently puncture the edge of the blister.
    • Press the fluid in the blister toward the hole so it can drain out.
  • Do not drain a blister of any size if:
    • You have a condition such as diabetes, HIV, cancer, or heart disease, because of the risk of infection.
    • You think your blister is from a contagious disease, such as chickenpox, because the virus can be spread to another person.
  • If a blister has torn open, or after you have drained a blister:
    • 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.

Home remedies may relieve itching from blisters. One way to help decrease itching is to keep the itchy area cool and wet. Apply a cloth that has been soaked in ice water, or get in a cool tub or shower.

Medicine you can buy without a prescription
Try a nonprescription medicine to help treat your fever or pain:

Talk to your child's doctor before switching back and forth between doses of acetaminophen and ibuprofen. When you switch between two medicines, there is a chance your child will get too much medicine.

Safety tips
Be sure to follow these safety tips when you use a nonprescription medicine:
  • Carefully read and follow all directions on the medicine bottle and box.
  • Do not take more than the recommended dose.
  • Do not take a medicine if you have had an allergic reaction to it in the past.
  • If you have been told to avoid a medicine, call your doctor before you take it.
  • If you are or could be pregnant, do not take any medicine other than acetaminophen unless your doctor has told you to.
  • Do not give aspirin to anyone younger than age 20 unless your doctor tells you to.

Symptoms to watch for during home treatment

Call your doctor if any of the following occur during home treatment:

  • A skin infection develops.
  • A crusty blister that drains honey-colored fluid develops.
  • Signs of illness develop, such as shaking chills, fever, belly pain, vomiting or diarrhea, muscle or joint aches, headache, or a vague sense of illness.
  • Symptoms do not improve, or they become more severe or frequent.
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