During the summer, high temperatures and perspiration are conducive factors to the emergence of heat rashes. But what exactly are they? How can they be prevented? Typology answers your questions.
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How to prevent the onset of heat rash?
Summary
Published May 31, 2022,
updated on July 31, 2024,
by
Maylis, Chemical Engineer
—
4 min read
Heat spots: origins, causes and definition.
Referred to as "miliaria sudorales" or "prickly heat" in medical terminology, heat rashes are common, benign and non-serious skin conditions.They tend to disappear naturally after one or two days.
What do they look like? They can be small transparent vesicles that resemble droplets of water or red spots. They are primarily found on exposed areas (forehead, neck, chest, hands, feet...) and in folds such as the armpits or groin.
What causes them? Heat spots are caused by excessive sweating related to high temperatures. With heat, the sweat glands produce a lot of sweat which blocks the sweat ducts, leading to these red spots. It is therefore a natural reaction of the skin to expel the sweat that gets trapped under the epidermis.
This phenomenon can affect every individual, but it is particularly prevalent among infants and young children. Even though heat rash is harmless, it can cause discomfort due to itching. It is possible to adopt certain measures to prevent their occurrence.
How to prevent the occurrence of heat rash?
As previously stated, these spots are not serious but can be uncomfortable and sometimes unsightly. Here are some tips to limit their development:
Wear loose and lightweight clothing.
During the summer season, it is recommended to wear loose clothing to assist the skin in sweat evaporation, so as not to block the sweat ducts. Moreover, tight clothing causes friction which will only exacerbate any potential irritations caused by heat rash.
Limit exposure to UV rays.
Long-term exposure to the sun often leads to excessive perspiration which can trigger the onset of heat rash.
Do not apply sunscreen with an overly greasy texture.
This may promote the obstruction of sweat ducts and thus lead to the emergence of heat rash. The sunscreens from Typology have a light and fluid texture. They do not leave white marks and are composed of 82% natural origin ingredients. For both face and body, they offer broad spectrum protection (SPF30 and SPF50).
Dry off after each swim.
In the summer season, swimming is a way to relax and reduce body heat. However, it is important to dry off properly after exiting the water, as moisture promotes the appearance of heat rashes.
Avoid exercising under the sun.
Physical activities are energy-consuming for the body and cause sweating. Engaging in sports under the sun will promote perspiration and therefore increase sweating.
Adhere to hygiene rules.
Apart from perspiration, other impurities that accumulate on the skin can also block the sweat ducts. To prevent heat rashes, it is therefore recommended to maintain cleanliness and wash daily.
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