Noun
obstruction of the sweat ducts during high heat and humidity
Source: WordNetI’ve gotten bigger kicks from heat rash. Source: Internet
The common symptoms of heat rash include a fine, bumpy, itchy rash, skin burning, and a "prickly" feeling (like something is crawling on skin). Source: Internet
The rubbing of skin that causes heat rash in humans does have an analogy in dogs with skin folds due to breed type or being overweight. Source: Internet
What are the triggers or causes of heat rash for you, a relative, or friend? Source: Internet