A small patch of sore skin deserves attention before it makes decisions for the whole group.
Reviewed and revised October 21, 2026. This article addresses friction blisters and preparation for Wilderness First Aid training. Blisters from burns, chemicals, illness, or an unexplained cause need a different assessment.
A blister seldom makes a grand entrance. There is a little rubbing, a tender heel, or a sore place where the paddle rests against your hand. It seems too small to interrupt a good day.
That is the useful moment to stop.
A few minutes spent looking after someone’s feet or hands can preserve choices later. Nobody should have to earn a rest by becoming unable to continue.
Notice the hot spot
Friction can damage skin on feet and hands. The NOLS blister resource emphasizes acting when a hot spot first appears. Stop the rubbing, check for grit or a troublesome seam, and adjust the equipment or activity causing it.
Pause in a suitable place. For paddlers, managing boats and reaching a safe landing comes before opening the medical kit. Do not create a capsize while trying to inspect a hand.
Prevention begins with fit
The American Academy of Dermatology recommends properly fitted shoes, moisture managing socks and clothing, and protection for areas prone to rubbing. Try equipment before committing to a long trip. Check skin during breaks and change wet or gritty socks when practical.
For paddlers, check glove fit and seams, clean away grit, and review grip and technique. Gloves can help, but a poorly fitted pair can introduce another source of rubbing.
Use purpose made tape, padding, or blister products according to their instructions. Test tolerance before the trip. Do not assume ordinary duct tape is suitable for every person’s skin, especially where it is already damaged.
If the blister is intact
Protect the blister from further friction. Use a suitable covering and, where appropriate, padding around it to reduce pressure. A ring of padding should leave space for the blister rather than press directly on it. Avoid sticking adhesive onto the fragile roof.
Check that the dressing has not created another pressure point or restricted circulation. Covering the skin is only part of the job; change the activity or equipment that caused the injury.
Drainage requires a decision
My earlier version advised considering drainage when a blister was large or likely to rupture. That was too casual for a public introduction.
An intact blister does not automatically need puncturing. Some wilderness protocols include drainage of selected painful blisters, but the decision depends on the person, location, symptoms, ability to protect the wound, and access to care. NOLS discusses drainage; dermatology guidance generally favors protection while recognizing exceptions.
Learn selection, technique, hygiene, and follow up through your course provider. This article does not give a needle procedure. Do not assume an improvised cleaning method makes equipment sterile. Suspected infection or uncertainty is a reason to seek medical advice.
If the blister opens
Wash your hands before care. Gently clean the area with soap and clean water, retain attached skin, and protect it with an appropriate dressing. Do not peel off the roof. These principles are consistent with NHS blister guidance.
Follow dressing instructions and replace coverings that become wet, dirty, loose, or otherwise unsuitable. Recheck the skin. A protected healing wound need not be dried out; the practical aim is cleanliness, protection, and avoiding prolonged soaking or renewed friction.
Do not routinely pour antiseptic chemicals into the raw area. A dressing or liquid coating cannot compensate for contamination or continued damage.
Coastal water is an added concern
An open blister is an open wound. CDC guidance recommends avoiding saltwater and brackish water exposure when possible. If contact could occur, cover the wound with a waterproof dressing. After exposure, wash thoroughly with soap and clean running water. A waterproof covering does not guarantee protection during continued immersion.
Seawater is not a treatment for broken skin. Mud belongs outside the wound too.
What changes the trip?
Reassess pain, the dressing, the cause of friction, and the person’s ability to travel safely. Can the paddler grip, steer, brace, and assist in a rescue? Can the walker manage the actual exit route without worsening the injury? Relief at rest does not answer those questions.
Shorten or end the outing when safe function is compromised or the injury cannot be adequately protected. Do not improvise a hazardous crossing or tow merely to finish the planned mileage. Arrange a safer exit or outside assistance.
Increasing pain, warmth, swelling, spreading redness, or pus warrants medical assessment. After coastal exposure, symptoms of wound infection require prompt attention. CDC warns not to delay care for suspected Vibrio wound infection. Rapid worsening, severe pain, fever, discoloration, or feeling seriously unwell calls for urgent medical evaluation.
If the person is deteriorating or cannot leave safely, activate emergency help, report the location and observed findings, and continue care while assistance is arranged. Record changes and times. Do not label redness alone as a confirmed infection.
People with diabetes, impaired circulation, reduced sensation, or immune suppression should seek individualized medical advice early. Do not apply a routine field approach without considering those conditions.
The care that makes a camp
Around camp, small acts of care matter. Clean hands before supper. Dry socks when they are needed. Time to inspect a dressing without making the person feel they are holding everyone up.
Food and family belong together around the campfire. Looking after the people gathered there belongs in the same tradition.
No Blister Monday is a hopeful title, not a guarantee. The goal is to notice trouble early and keep a small injury from becoming a reason someone cannot get home safely.
For my expedition account and corrected wound care guidance, read Skin ’tastic Thinking: First Aid. For supplies, see Jeff’s Favorite First Aid Essentials. Take a Wilderness First Aid course and practice with your own kit.
Jeffrey John Fabiszewski
FloridaOATS
Documentation and further reading
References checked October 21, 2026. Follow current product directions and your training provider’s protocols. The older NOLS resource is included for wilderness context, not as a substitute for supervised skills practice.
- NOLS: How to Prevent and Treat Blisters
- American Academy of Dermatology: How to Prevent and Treat Blisters
- NHS: Blisters
- CDC: Preventing Vibrio Infection
- CDC: About Vibrio Infection and When to Seek Care
Continue with Wilderness First Aid: A Reading Guide for related articles, learning resources, and their medical limits.
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