Prickly heat refers to skin irritation characterized by redness, itchiness, and bumps caused by excessive sweating. The spelling of "prickly" is /ˈprɪkli/ with the stress on the first syllable and the "ck" representing the /k/ sound. "Heat" is spelled as /hiːt/ with a long "ee" sound and the "h" is silent. The pronunciation of prickly heat is /ˈprɪkli hiːt/, with the stress on the first syllable of both words. It is a common condition during hot and humid weather and can be relieved with cooling measures and over-the-counter treatments.
Prickly heat, also known as miliaria or heat rash, is a common skin condition that occurs when sweat ducts become clogged, leading to the formation of tiny red or pink bumps on the surface of the skin. Typically, prickly heat manifests in areas of the body that are prone to sweating, such as the neck, underarms, groin, and folds of skin. The condition is often exacerbated in hot and humid weather or when dressed in tight clothing that hinders proper airflow.
Prickly heat is characterized by a prickling or stinging sensation accompanied by intense itching and a feeling of skin irritation. The condition results from the body's inability to regulate temperature efficiently, causing sweat to be trapped beneath the skin. The trapped sweat can then leak into the surrounding tissue, leading to inflammation and the formation of small, itchy bumps.
To relieve prickly heat, it is important to keep affected areas cool and dry. Efforts should include wearing loose-fitting, breathable clothing and avoiding excessive heat and humidity. Taking cool showers or applying cool compresses can also provide temporary relief. Additionally, over-the-counter anti-itch creams or lotions containing ingredients like calamine or hydrocortisone can help alleviate symptoms.
Prickly heat is generally a mild and self-limited condition that subsides on its own within a few days to a couple of weeks. However, in severe cases, where the rash is widespread or accompanied by symptoms such as fever, medical attention should be sought. A healthcare professional may prescribe stronger topical medications or suggest other treatment options to provide relief and prevent complications.
Miliaria rubra.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
The term "prickly heat" originally comes from the medical condition known as miliaria. The word "miliaria" is derived from the Latin word "miliarius", which means "of millet seeds". This name was given to the condition because the small, itchy bumps that appear on the skin resemble millet seeds. Over time, the term "prickly heat" emerged as a colloquial name for miliaria, referring to the prickling or stinging sensation experienced by individuals with this condition.