What is the acute inflammatory disorder also known as prickly heat?

The acute inflammatory disorder commonly referred to as prickly heat is indeed Miliaria Rubra. This condition occurs when sweat ducts become blocked, leading to the trapping of sweat beneath the skin. It's characterized by a red, itchy rash, often appearing in areas where sweat collects, such as the back, neck, and armpits. The inflammation is a direct response to the heat and sweat, causing discomfort, particularly in hot or humid weather conditions.

In contrast, atopic dermatitis is a chronic skin condition that causes itchy, inflamed skin, and typically involves a different set of underlying factors, including genetic and environmental triggers. Psoriasis is an autoimmune disorder that leads to rapid skin cell turnover, resulting in thick, scaly plaques on the skin. Rosacea is a chronic facial skin condition characterized by redness and visible blood vessels, often accompanied by bumps and acne-like lesions, but it is not related to sweating or heat as with Miliaria Rubra. Understanding the specific features and causes of these skin conditions helps to effectively differentiate between them.