What should I do about heat rash caused by the hot and humid summer weather?

When suffering from prickly heat (heat rash) due to hot and humid summer weather, the following measures can be taken: 1. **Stay cool:** Stay in well-ventilated and cool environments as much as possible. Use air conditioning or fans to lower indoor temperatures, and avoid prolonged activity in high heat. 2. **Wear breathable clothing:** Choose loose, breathable, sweat-absorbing cotton garments. Avoid tight-fitting or synthetic fiber clothing to reduce skin friction and irritation. 3. **Skin hygiene:** Bathe frequently to keep the skin clean and dry. Use mild bathing products and avoid vigorously scrubbing the skin. After bathing, gently dry the body, especially skin folds, then apply an appropriate amount of prickly heat powder or talcum powder to keep the skin dry and comfortable. 4. **Avoid scratching:** Prickly heat may cause itching, but scratching should be avoided as much as possible to prevent worsening symptoms or causing infection. 5. **Dietary adjustments:** Drink plenty of water to stay hydrated. Maintain a light diet and consume more fresh vegetables and fruits. Avoid spicy, greasy, or other irritating foods.