How to Heal Foot Blisters and Protect Them From Rubbing
For a blister caused by shoe friction, protect the skin, keep it clean, and stop the rubbing. Here is what to do whether the blister is intact or has opened.
To help a foot blister heal, keep it clean, cover it, and stop the friction that caused it. Leave an intact blister closed rather than popping it to get back into the same shoes.
This guide covers ordinary friction blisters, such as a sore spot after a walk in shoes that rub. Blisters from burns, unexplained rashes, or other skin conditions need different care.
If the blister is still closed
Gently clean the skin and pat it dry. Cover the blister with a soft dressing that protects it without pressing tightly on the fluid-filled area.
For a pressure spot, a ring of padding around the blister can help keep weight off its center. The American Academy of Dermatology's blister guidance describes this approach for areas such as the sole of the foot.
A blister dressing, including a suitable hydrocolloid dressing, is another option. Follow its package directions; a pharmacist can help you choose one for the blister's location and condition.
Do not puncture it at home. If it is large or so painful that you cannot walk comfortably, seek medical advice about treatment.
If the blister has already opened
Wash your hands before touching it. Gently wash the area with soap and water, let loose fluid drain, and leave the remaining skin in place. Do not peel it back or pick at the edges.
For a simple nonstick bandage, a thin layer of plain petroleum jelly can help protect the exposed area. Cover it with the bandage and replace it if it becomes wet or dirty. If you use a specialty blister dressing, follow its instructions about application and replacement instead.
Keep exfoliating tools and foot scrubs away from the wound. Care for rough skin after the blister has healed; our foot-scrubbing guide is for suitable intact skin.
Can you keep walking on it?
Pause the activity that caused the blister and choose footwear that does not rub the area. A bandage will not solve the problem if a stiff heel or tight seam keeps pressing on it.
For essential walking, check that your dressing stays in place and your footwear feels comfortable. If you are limping or pain is increasing, reduce pressure and get advice.
Before returning to a longer walk, address the cause: check shoe fit, smooth out sock seams, and use socks that manage moisture. Carry a spare pair if your socks tend to become damp.
How long does healing take?
Many small friction blisters heal within about a week, though larger or repeatedly irritated ones can take longer. Look for less discomfort and gradual healing rather than relying on an exact deadline.
If the same spot keeps blistering, review the footwear or activity before repeating it. Recurrent blisters without an obvious rubbing point deserve an assessment.
When should a clinician check it?
Seek prompt care for increasing warmth, swelling, spreading redness or discoloration, pus, or worsening pain. Fever or feeling unwell alongside an infected-looking blister also needs urgent attention.
If you have diabetes, contact your clinician or foot-care team promptly about a new blister rather than waiting for your next routine visit. The CDC's diabetes foot-care guidance specifically includes blisters among problems to report. Poor circulation or reduced sensation also makes individual advice important.
This article provides general information and does not replace individual medical advice.