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Chewing gum could help ease symptoms of hay fever, according to an NHS GP. Dr Tim Mercer shared advice on how to pollen-proof homes and relieve nighttime symptoms as the allergy season gets underway. He said: "Allergy season is back, and for many, that means disrupted sleep, itchy eyes, and endless sneezing. When we breathe in allergens like pollen or dust mites, our immune system overreacts, releasing histamine. This triggers symptoms like congestion, sneezing, and watery eyes.

"Histamine levels naturally peak at night, making symptoms worse just when we're trying to sleep. Pollen also clings to clothes, hair, and bedding, creating an invisible storm of irritation." Dr Mercer, who is a GP partner and GP trainer with Opera Beds, said simple changes that can help include swapping cotton pillowcases for silk ones, which can prevent allergens like dust mites accumulating.

Meanwhile, using an acupressure mat or chewing gum before bed can help to alleviate congestion.

Dr Mercer said: "Chewing gum before bed may help clear nasal passages and reduce congestion by promoting saliva production and swallowing, which can help flush out allergens."

More than 10 million people in the UK are thought to suffer from hay fever and tree pollen levels are now rising, with grass pollen expected to follow later in the year.

A similar number suffer from dust mite allergies, making them a leading cause of year-round indoor irritation.

Drinking green tea in the evening can help as it contains natural antihistamines, while alcohol can make symptoms worse by increasing histamine levels, Dr Mercer said.

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The GP added: "To sleep better during allergy season, now is the time to begin to 'allergy-proof' your home. A few simple changes, like vacuuming more regularly and washing bedding at 60°C can limit exposure to pollen and dust mites.

"You can also shower before bed to wash off pollen, stopping it from transferring to your pillow. Try to keep windows closed as much as possible, as open windows let pollen straight in.

"Pollen count is highest in the early evening, which is worse for symptoms. Anticipating the pollen can prevent allergies from disrupting your sleep.

"Small changes like these can make a big difference to allergy sufferers, especially during peak pollen seasons."