“Keep moving! Exercise gets your feet and legs moving, and your heart and circulation going strong,” says Dr Watson. “The more the heart is pumping blood around the body, the better.”

But don’t worry – walking is enough here. “Don’t overdo it,” warns Dr Watson. “The key is to keep the legs moving, and this can be done simply by walking.”

And last but not least, keeping well hydrated will help reduce swelling.

“This is because when your water intake is low, the salt concentration in your blood increases, causing you to retain more of the water that you do drink in your tissues and blood vessels,” says Dr Watson. “It’s also sensible to watch your salt intake, as a high salt intake increases the salt concentration in your body and encourages water retention and swelling.”

Why do our feet and ankles swell in the heat? We asked the experts