What is 'asphalt burn' and how do you prevent it?

While training for the Dodentocht, many walkers developed a red rash on their legs, popularly known as 'asphalt burn'. In HLN, Dr Griet Voet explains what is going on.

The combination of heat and prolonged exertion irritates and inflames the small blood vessels in the legs. Red to purplish-red patches appear, mainly on the lower legs. The patches can remain visible for a few days, but are usually harmless.

If they do not fade after a few days, get worse or are accompanied by symptoms such as severe pain, swelling or blisters, have them checked. The article also contains general walking tips from Wandelsport Vlaanderen.

• Wear lightweight, suitable walking clothes.

• Listen to your body and cool your legs down if they feel warm or tired.

• If the patches do not improve or you have pain, swelling or blisters, see a doctor.