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However, doctors always recommend seeing a GP first before trying any homoeopathic medicine in case it interferes with any other medication they may be on.
The Queen also makes sure she is well entertained during long flights.
Author Robert Hardman shared an insight into her inflight entertainment choices in his book Queen of the World.
It turns out that, just like many travellers, the Queen likes to settle in with a film.
Queen Elizabeth: Just like many fliers, the Queen likes to settle in with a film (Image: Getty Images)
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“It is a general rule that when the Queen travels to one of the old dominions, they foot the bill,” Hardman wrote.