(Pamela Kirkland, Gillian Brockell, and Kate M. Michael Irwig explains how sunlight, or lack of it, can affect a person's health. One of the best known benefits of sunlight is its ability to boost the body's vitamin D supply, but what happens when you can't get outside in the sun? George Washington University's Dr. “It coats and protects bacteria.” Biofilm can also clog up sweat glands. “It used to be called slime,” Allen says. Sometimes the bacteria produce a substance that scientists call biofilm. They both start with staphylococcus bacteria living on the skin, says Herb Allen, a dermatologist and researcher at Drexel University in Philadelphia. The chain of events is the same in heat rash as in eczema.
SWIMMERS ITCH VS CHIGGERS SKIN
The skin can feel irritated and itchy, giving rise to another common term for the syndrome - prickly heat. Heat rash, called miliaria by doctors, can cause the skin to redden if the glands are blocked in a deeper layer of the skin.
Heat rash occurs when the sweat glands are blocked by tiny blisters - they resemble small beads of sweat - that form on the skin. Your rash may be coming from two hard-to-escape realities of summer: heat and sun. You quickly rule out the usual suspects: You haven’t been gardening or hiking or even picnicking, so it’s probably not a plant irritant such as poison ivy or wild parsnip likewise, it’s probably not chiggers or ticks carrying Lyme disease and you haven’t been swimming in a pond, which can harbor the parasite that causes swimmer’s itch.
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