Blisters are usually caused by friction or burns. If the blister isn’t too severe or
painful, try to keep the unbroken skin intact. It provides a natural barrier to bacteria and decreases the risk of infection. Cover the blister with a small bandage to protect it.
If the blister is painful, drain the fluid while leaving the overlying skin intact by following these steps:
Wash your hands and the blister with warm water and soap.
Swab the blister with rubbing alcohol to kill germs.
Sterilize a clean, sharp needle by wiping it with rubbing alcohol.
Use the needle to puncture the blister. Puncture several spots near the blister’s edge. Let the fluid drain, but leave the overlying skin in place.
Apply a natural antibiotic, such as Goldenseal, St. Johnswort,
or Yerba Mansa, and cover with a bandage. (There are several antibiotic ointments that you can make yourself on the Salves & Ointments page.
After several days, use tweezers and scissors that have been sterilized in rubbing alcohol to cut away the dead skin. Apply more antibiotic.
Call your doctor if you see signs of infection around the blister — pus, redness, or increased pain.