Blisters are a common problem among runners, and while it's advisable to leave most blisters to resolve on their own, some blisters may need to be actively popped. Blisters that are big enough to allow you to see the fluid inside are probably big enough to impede a runner's stride or pop during a run and should be popped. When popping a blister, it's important to take all precautions to prevent infection and to allow for proper drainage and healing.
Step 1
Prepare the needle by rinsing it in rubbing alcohol. Wash the blister and its surrounding area with soap and water, or disinfect it by wiping it down with an alcohol wipe or alcohol-soaked cotton ball.
Step 2
Puncture the blister with the needle in an area where it will be likely to drain, either by gravity, or by the motion of the foot. Ideally, two holes on either end of the blister for a total of four holes will provide adequate drainage.
Step 3
Small holes may close up, so wiggle the needle around in the hole to enlarge it and make sure that it stays open.
Step 4
Once the holes are made, push the fluid out of the blister with your fingers. Dry the area and disinfect it with hydrogen peroxide or an antibiotic ointment.
Step 5
Cover the area with a sterile bandage or a moleskin patch and athletic tape.
Tips and Warnings
- A dab of ointment or lubricant can help keep the bandage from sticking to the blister; just make sure the bandage is wider than the area covered by the ointment.
- If the area around the blister reddens, swells up or begins to discharge pus in the days after popping, it may be infected; have it checked out by a doctor. If you can help it, don't remove the skin of the blister; the blister's skin provides a protective layer while the blister heals.
Things You'll Need
- Needle
- Rubbing alcohol or alcohol wipes
- Soap
- Cotton balls
- Hydrogen peroxide
- Antibiotic ointment
- Sterile bandage or moleskin and athletic tape
