Blisters are brutal. That burning, raw sting every time your foot hits the ground?
They’re not just annoying—they throw off your form and raise your risk of injury big time. One study even says your chance of other injuries goes up by 50% if you keep running on a bad blister.
Here’s the good news: You’re not alone, and you don’t need to give up your favorite shoes.
Blisters are basically bubbles of fluid that form when something rubs your skin the wrong way—usually from poor fit, sweaty feet, or socks that betray you. But they’re fixable.
In this guide, I’ll walk you through why your shoes might be giving you blisters, how to fix it now, and how to stop it from coming back.
These are the same fixes I use with every runner I coach. No gimmicks. Just stuff that works.
Why Your Running Shoes Are Giving You Blisters (And What to Do About It)
Let’s cut to the chase: if you’re getting blisters, something’s not clicking — could be the shoes, the socks, how your foot moves, or even the weather.
A blister is your skin throwing up a red flag, yelling: “Too much rubbing happening here!”
Your job? Figure out what’s rubbing and fix it. Maybe your shoes are a touch too tight, or your socks are holding on to sweat like a sponge. Maybe your foot’s slipping around in the shoe, begging for a better lacing technique.
In this guide, I’ll walk you through the real fixes — from quick hacks that’ll save your next run, to longer-term adjustments that’ll help you leave the blister drama behind for good.
These aren’t long-term plans — they’re the fast-acting bandages for blister chaos. I call them first aid for your feet.
Shoes That Don’t Quite Fit
If your shoes are too tight, they press and pinch. Too loose? Your feet slide around.
Either way, you get blisters.
I once wore a pair half a size too big—didn’t want to admit my feet had grown—and got blisters on both big toes from all the movement.
Another time, I went too tight and ended up with a hot spot on my little toe that nearly stopped my run.
Your shoes should feel snug—not tight—and have about a thumb’s width of room at the front. No heel slippage, no toe smashing. If you’re feeling movement or pressure, friction is already happening.
Ditch the Cotton Socks – Seriously
Wearing cotton socks? Stop.
Cotton holds sweat, which softens your skin and makes it easier to rub raw. Thin socks with bad seams or ones that bunch up mid-run are just as bad.
I’ll admit it—I used to run sockless. That led to a massive blister on my arch I won’t forget.
The fix: Get moisture-wicking running socks with smooth seams — think CoolMax, synthetic blends, or even merino wool. These materials wick sweat away and keep your feet drier.
No bunching. No wrinkles. Just smooth, snug comfort.
When I made the switch years ago, my blisters dropped off almost overnight. I still tell new runners: “Step one — toss the cotton.”
Problem Spots Inside the Shoe
Sometimes it’s not the whole shoe—it’s one little thing.
Maybe a rough seam, a hard edge on the insole, or even a lacing pattern that’s pressing too hard.
If your blister always shows up in a weird spot—like the arch or the top of your foot—check for something inside the shoe doing the damage.
Tight laces can cause pressure on the top of your foot. Loose ones let your foot move too much. Both can mess you up.
Blisters are clues. Pay attention to where they pop up—they’re telling you what’s wrong.
Grease the Trouble Zones
Where there’s rubbing, there’s pain. A thin smear of Vaseline or Body Glide can make all the difference.
Before I head out — especially for long runs or when I know the forecast is muggy — I slather my toes and heels.
Yes, it feels weird for five minutes. But greasy toes mean no blisters, and that’s a trade I’ll take any day.
On extra-long days, I even bring a tiny pouch of lube with me in case I need a mid-run reapply.
Bonus trick: some runners like to use powder before the grease for double protection.
You do you — just don’t let your feet dry out and rub raw.
What about you? Got a trouble spot that always blisters? Try greasing it up before your next long run and see what happens.
Your Feet and Your Form
Got high arches? Flat feet? Bunions? Hammer toes?
These things can all cause pressure points inside the shoe. Even if the shoe fits fine, certain foot shapes can create rubbing spots.
I coach someone who has to tape his bunion every single run—no matter the shoe—because it’s always a blister risk.
How you run matters too.
Overstriding or pronating (when your foot rolls inward) can shift how your foot moves in the shoe.
I used to overpronate slightly on my right side—and guess where I kept getting blisters? Right arch.
A gait analysis and better support solved it.
If you keep getting blisters in the same spot, it might be your form. Get a coach or someone at a running store to take a look.
Lock Your Heel Down Like a Pro
Ever feel your heel slipping or your toes slamming forward on downhills?
That movement creates friction — and friction means pain.
Here’s where the heel-lock (a.k.a. runner’s loop) comes in. Use the top eyelets on your shoes to lace in a way that holds your foot in place. It’s simple and takes less than a minute.
There are plenty of visuals online if you want a quick how-to.
One of my runners used to get toe blisters every time we hit the hills. After I taught her the heel lock, the blisters disappeared.
That simple.
Try it: Next time you lace up, use the runner’s loop. Let your feet feel the difference.
Tape Before Trouble Starts
If you know where blisters usually hit — say, your left heel or under your big toe — pre-tape that spot before your run.
Moleskin, bandaids, kinesiology tape… whatever sticks and stays flat works.
I’ve got a weird arch spot that acts up during long runs, so I tape it before big mileage days. Better to be overprepared than to limp home blistered and angry.
Reddit runners have used everything from duct tape to surgical tape — and I’ve even done that mid-ultra when I was out of supplies.
Ugly? Sure. Effective? Absolutely.
Have a go: Next run, pre-tape your known hot spot. It might just save your day.
Heat, Sweat, and Humidity
Moisture is blister fuel. Wet skin is softer and easier to rub raw.
And hot weather makes your feet swell, so your shoes feel tighter mid-run.
When I moved to Bali, I went from blister-free to battling them constantly—even though I didn’t change shoes or socks. The humidity alone did it.
Even puddles or rain can cause issues. Once your socks get soaked, you’re on borrowed time. Heat and moisture make friction worse by swelling your feet and softening the skin. That’s why hot race days and rainy trails often end with fresh blisters.
Here’s the solution.
If your feet get soaked — rain, sweat, puddles — consider changing into dry socks mid-run. I keep a spare pair in my pack for ultras.
Even if you can’t change socks, pull off your shoes and let your feet breathe for a minute.
One time I literally sat on the side of a trail, socks flapping in the wind like a weirdo — but it dried them out just enough to stop a blister from forming.
Also: if you feel a hot spot mid-run, STOP. Adjust your laces, smooth out your sock, tape up, or throw on some Vaseline.
Let’s Pause Here—Quick Check:
- Are your shoes too tight or sliding around?
- Still wearing cotton socks?
- Getting blisters in the same spots?
- Feet sweat buckets when you run?
If you nodded “yes” to any of those, don’t worry—we’re going to fix it.
But first—what’s your worst blister story? Drop it in the comments. Let’s share the pain and the lessons.
Conclusion: Don’t Sacrifice Your Skin for the Miles
Blisters might be tiny, but they hit like a sledgehammer when you’re deep into a run.
They’ve sidelined elite racers and everyday joggers alike.
But here’s the truth—you don’t have to “tough it out.”
You can run far, run fast, and still protect your skin. It’s not one or the other.
Blister prevention should be part of your training routine—like fueling or recovery. Skip it, and you’ll feel it.
Pay attention to the little things (shoes, socks, lube), and the big things (pace, consistency, joy) fall into place.
I’m not telling you to go buy $200 shoes or reinvent your stride today.
I’m telling you to pick one new trick from this guide and try it this week.
Maybe it’s taping. Maybe it’s switching socks. Maybe it’s just listening to your feet more.
And if you’re like me, you’ve already learned the hard way—bad runs often start with hot spots and bad prep.
Final Checklist Before Your Next Run:
- Right shoes? ✅
- Good socks? ✅
- Lubed or taped the usual suspects? ✅
- Feet dry and ready? ✅
Then you’re good to go.
Remember: blisters are common, but preventable. Don’t let them steal your momentum.
Treat your feet like you treat your training—with care and intention.
Happy feet = happy miles.
See you out there—blister-free and flying.
—David 🏃♂️💨