2022---heat-rash---symptoms--treatment---prevention Official

: The affected area often becomes red and swollen.

Heat rash, or prickly heat, happens when your sweat glands get blocked, trapping sweat under your skin instead of letting it evaporate. This leads to irritation that typically shows up in areas where skin rubs together or clothing is tight, like the neck, groin, or underarms. 2022---Heat-rash---Symptoms--Treatment---Prevention

Most cases clear up within 2 to 4 days if you keep the area cool and dry. Heat Rash Prickly Heat (Sweat Rash) Symptoms & Treatment : The affected area often becomes red and swollen