Sweating and Eczema: A Volatile Combination.

Sweating , or perspiration, is a natural physiological phenomenon . It is characterized by the secretion of sweat by the sweat glands. Sweating is activated in response to the body's need to lower its temperature, in the face of intense heat, high physical activity, or a stressful situation. For this, the autonomic nervous system is mobilized and sends signals triggering the release of sweat. Sweat glands are distributed all over the body, with a higher density in the palms of the hands, soles of the feet, and armpits.

Sweating can be a source of irritation on the skin, especially in areas with eczema lesions. Indeed, it can cause burns or tingling sensations. This is largely due to the natural acidity of sweat, which has a pH between 4 and 6. Additionally, it contains sodium chloride, or salt, which has a drying effect on the skin. Skin dryness is in itself an aggravating factor for eczema, as dry skin, with a deficient or nearly absent hydrolipidic film, is naturally less protected against external aggressions and allergens.

Finally, sweat promotes the colonization of the skin by staphylococci, microorganisms that thrive particularly in warm and humid environments. Indeed, staphylococci can exacerbate inflammation caused by eczema, thereby worsening the condition. In case of a staphylococci infection, it is necessary to consult a healthcare professional. They can provide advice to prevent the spread of the infection and may prescribe antibiotics if needed.