Sweating is a natural phenomenon that allows the body to maintain a constant temperature of 37°C. However, sometimes this sweating is excessive, especially on the feet, and this can have embarrassing consequences in daily life.

Why do we sweat on our feet?

The deep layer of the skin on the feet, like the rest of the body, contains sweat glands that allow the secretion of sweat. The feet actually have the highest concentration of these glands on the body.

On average, the body produces about 0.5L of sweat per day, excluding physical exertion and excessive heat.

In some people, sweating is excessive, a condition known as hyperhidrosis. Most often, hyperhidrosis affects localized areas such as the armpits, palms of the hands, and soles of the feet. These individuals may, for example, sweat on their feet even in winter when it's cold.

What are the triggers for localized hyperhidrosis?

In general, excessive sweating on the feet has no identifiable cause with certainty.

  • A dysfunction of the nervous system causing overactivity of the sweat glands
  • In 25% of cases, genetic factors are involved, with at least one parent affected by the same condition

Most often, these episodes occur due to certain factors:

  • Strong emotions and stress factors
  • Hot weather
  • Consumption of spicy foods and/or alcohol
  • Intense physical exertion
  • Wearing inappropriate gear (tight shoes, socks made of inappropriate material)

What are the risks?

When excessive sweating on the feet occurs, skin problems can arise:

  • Fungal infections of the nails and skin
  • Plantar warts
  • Frostbite (in skiers and people working in cold environments)
  • Blisters due to increased friction with moisture
  • Bromodosis (foot odor due to bacteria present in large numbers due to maceration)

In addition to these skin conditions, excessive sweating on the feet can also lead to premature wear of socks and shoes and, in the long term, have social consequences.

What are the solutions for excessive sweating?

Hyperhidrosis is not life-threatening. It is possible to reduce the effects of excessive sweating on the feet by following a few simple rules:

Socks and shoes

Opt for appropriate gear by choosing quality shoes made with breathable materials, and socks made with moisture-fighting materials: the most effective fibers in this area are natural fibers like wool, linen, silk, viscose, or bamboo.

Treatments

  • Deodorants and antiperspirants: available in gel, cream, or spray form, based on aluminum chloride and antiperspirants, they help reduce sweating. Most of the time, they are available over the counter at pharmacies, and you just need to apply them to the soles of your feet.
  • Alum stone is the natural antiperspirant par excellence and is also applied to the soles of the feet.
  • Palmarosa and Clary Sage essential oils sprayed on the affected areas are most suitable for combating excessive sweating on the feet.
  • White clay, baking soda, and dried sage leaf powder have absorbent, regulatory, and astringent properties. Simply sprinkle your feet with one of these natural products and rub them well on the soles of your feet and between your toes. Then carefully dry your feet with a towel to remove any excess powder.

If these measures are not sufficient, it is advisable to consult your doctor who may prescribe medication or refer you to a dermatologist.