The foot is the walker's primary tool. It bears the weight of the body, absorbs shocks and transmits the sensations of the terrain. Yet it is often the most neglected part until pain appears.
Chafing, blisters, black toenails or burns: check out how to turn your feet into tireless allies for your next hikes.
Diagnostic guide: identifying and treating common foot pain
Use this table to react at the first warning signs.
| Symptom | Likely cause | Corrective Action |
|---|---|---|
| Burning sensation local | Friction (pre-blister) | Apply an anti-friction cream immediately |
| Heel lift | Insufficient support | Using the "locking knot" (Heel Lock) |
| Tingling on the top | Instep compression | Using the "window lacing" technique |
| Toe stubbing on the descent | Shoe too short | Tighten the instep / Go up +1 size |
1. The D-21 preparation: why does "toughening" change everything?
The skin of the foot must be both resistant and flexible. If it is too soft, it chafes; if it is too dry, it cracks.
- The toughening secret: 3 weeks before a trek, apply lemon juice or a boric acid-based cream to the soles of your feet every morning. The acidity will harden the epidermis.
- The essential complement: In the evening, moisturise your feet with a rich cream to maintain flexibility. Toughened but flexible skin is the ultimate weapon against blisters.

2. Precision hygiene: how to avoid infections on the trail?
Moisture is enemy number one. It softens the skin and encourages fungal infections.
- Nail trimming: Don't cut them too short or in a rounded shape. A "square cut" prevents ingrown toenails during prolonged descents.
- Meticulous drying: After washing, always dry the spaces between your toes thoroughly. This is where maceration and fungal infections begin.
- Podiatrist's advice: An annual visit allows you to treat calluses (hard skin) which, under the pressure of walking, become points of intense pain.
3. Choosing your shoes: why is the 5 mm margin vital?
During a hike, the foot spreads and swells due to heat and effort.
- Key tip: Choose your shoes half a size, or even a full size larger than your usual size. There should be at least 5 mm (the width of an index finger) between your toes and the end of the shoe.
- Prevention: Never head out with new shoes. Wear them progressively on short outings to "break in" the stiffness of the upper. For guidance on making the right choice, read our advice: what criteria should you use to choose your hiking shoes?

4. Technical socks: how does the "double-skin" eliminate blisters?
Forget cotton socks that trap moisture. Technology has revolutionised the comfort of the walker.
- The double-skin concept: Socks such as the Cimalp anti-blister models use two layers of fabric. The friction occurs between the two textile layers rather than between the sock and your skin.
- Managing sweat: Change your socks every day, and ideally at midday during intense treks. Putting on a dry pair acts as a genuine "booster" for morale and the health of your feet.

5. Post-effort recovery: how to get circulation moving again in the evening?
Care doesn't stop when you reach the refuge.
- Immediate airing: As soon as you reach your stopping point, remove your shoes and socks. Use open sandals to let your feet breathe.
- Kit maintenance: Remove the insoles (cleanliness) and let them air dry. To maximise the longevity of your equipment, follow our guide on how to care for your hiking shoes.
- Self-massage: A firm massage of the arch with a tennis ball or simply with your hands helps drain swelling and release muscular tension.