• Heat rash appears as small, raised bumps in areas where sweat is trapped, causing a prickly, itchy sensation.
• Allergy rashes vary in appearance (hives, eczema, contact dermatitis) and can occur anywhere on the body due to allergens, causing intense itching and potential swelling.
• Differentiate by location, appearance, and accompanying symptoms; seek medical advice for severe rashes, signs of infection, or difficulty breathing.