Red clusters of pimples or small blisters that appear on the skin are a symptom of?

The presence of red clusters of pimples or small blisters on the skin is characteristic of heat rash, also known as prickly heat or miliaria. This condition typically arises when sweat gets trapped in the skin, often in hot and humid conditions, leading to inflammation and the development of these small, itchy bumps.

Heat rash occurs when sweat glands become blocked and sweat is unable to escape, which can happen during intense heat or after excessive sweating. It's common in individuals who are working in hot environments or during periods of high temperatures.

Recognizing heat rash is important for managing it effectively and preventing further discomfort or complications. In contrast, heat exhaustion, heat cramps, and heat stroke present with different symptoms, such as excessive sweating, muscle cramps, or more severe systemic issues, therefore those options do not align with the specific symptom described.