How to cool down if you or someone else has symptoms of heat exhaustion:
move to a cooler place such as a room with air conditioning or somewhere in the shade
remove all unnecessary clothing like a jacket or socks
drink cool water, a sports or rehydration drink, or eat cold and water rich foods like ice-lollies
apply cool water by spray or sponge to exposed skin, and using cold packs wrapped in a cloth and put under the armpits or on the neck can also help
You should start to cool down and feel better within 30 minutes. If you are concerned about symptoms, or they are worsening, seek medical advice by contacting NHS 111. In an emergency, or if you think someone has heatstroke, dial 999.