Protect it from further rubbing by applying
a loose bandage.
Avoid the activity that caused the blister.
Protect the blister with a
doughnut-shaped moleskin pad if you are putting
pressure on the blistered area. Leave the area over the blister
Drain a blister that is larger than
1 in. (2.5 cm) across. The
following is a safe method:
Clean a needle with rubbing alcohol or soap
Gently puncture the edge of the
Press the fluid in the blister toward the hole to drain
Once you have opened a blister or if it has torn
open, wash the area with soap and water.
Do not remove the flap of
skin that covers the blister unless it is very dirty or torn, or pus forms
under the blister. Gently smooth the flap flat over the tender skin
Apply an antibiotic ointment, such as bacitracin or
Polysporin, and a sterile bandage. Do not use rubbing alcohol, hydrogen
peroxide, iodine, or Mercurochrome on the blister. They can harm the tissue and
the bandage once a day, or whenever it gets wet, to reduce the chance of
Remove the bandage at night or any time you know the
area will not be irritated.
If the skin around or under the blister becomes red, warm, or
painful, or if a fever or pus develops, an infection may be
How this information was developed to help you make better health decisions.