1. Treatment of scald: For mild scald, clean ice cubes can be directly applied to the scald, which can not only relieve pain, but also reduce the occurrence of blisters.

2. Treatment of heatstroke: In summer heatstroke, ice cubes can be immediately applied to the head and chest. When the head is exposed to direct sunlight and there is a severe headache, you can also use ice cubes to cool down immediately.

3. Treatment of dermatitis: In summer, if you have prickly heat or a small red rash, you can scrub the affected area with ice water, which can not only relieve itching, but also make the rash disappear as soon as possible.