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Colder weather can bring with it a host of bugs and ailments as our body's immune systems come under fire. Winter usually sees a familiar rise in seasonal health concerns, but according to Superdrug Pharmacy Superintendent, Niamh McMillan, some conditions are far more likely to flare than others.

These can include issues ranging from digestive discomfort to immune-support help, leaving pharmacists preparing for a busy few months. But, according to the expert, there are simple and affordable ways to stay on top of symptoms before they become disruptive.

Niamh highlights the top winter flare-ups, why they happen, and the practical steps people can take to support their health throughout the colder season. She says: "Winter doesn’t need to be a season of discomfort.

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"By understanding which conditions are most likely to flare and having the right support in place, people can stay healthier and feel more in control. Small steps really do make a big difference."

Rich festive foods, and irregular eating patterns can lead to indigestion. This makes it one of the UK’s most common seasonal complaints.

Niamh says: "During winter, people naturally shift towards heavier, richer meals, and this sudden change places more strain on the digestive system. Heartburn, bloating and indigestion are all incredibly common at this time of year, but they’re also very manageable with the right support.

"Simple changes like eating smaller portions, avoiding late-night meals, and keeping fast-acting indigestion relief on hand can make a huge difference. It’s often about being prepared as much as being proactive."

She adds for customers seeking relief, Superdrug Own Brand Indigestion & Heartburn Relief Tablets provide quick, effective support, helping neutralise excess stomach acid and soothe discomfort after larger meals.

Shorter daylight hours mean that most people struggle to produce enough vitamin D, a key nutrient for immunity, energy, and bone health. Niamh explains: “By the time we reach mid-winter, vitamin D levels in the population are at their lowest.

"This can contribute to tiredness, weaker immunity and even muscle aches. Supplementation is one of the simplest, most effective winter health strategies.

"I would recommend Superdrug Vitamin D 25ug 90s, designed to provide a reliable daily boost throughout the darker months. A daily vitamin D supplement is one of the biggest winter health game-changers. It’s safe, affordable and recommended for almost everyone.”

Colds, coughs and viral infections spread rapidly in winter as people spend more time indoors and in closer contact with others. Niamh says: “We always see an increase in customers seeking advice for cold and flu symptoms from October onwards.

"Strengthening the immune system through good sleep, balanced nutrition and good hygiene habits is essential and supplements can play a valuable role in supporting the body’s natural defences.”

She says there are a range of effective daily options, including Superdrug High Strength Vitamin C 1000mg (90s) to support immune health, as well as Superdrug Max Day and Night Capsules x 16 for fast, convenient relief when symptoms strike.

Cold sores often flare-up in winter. As temperatures drop and immunity dips, many people find themselves experiencing more frequent outbreaks particularly when they’re run down, stressed or battling seasonal bugs.

Niamh says: "Cold sores often flare up when the immune system is under pressure, which is common in winter when people are fighting off colds, run down or stressed. Dry, cracked lips and skin can also make us more vulnerable to irritation and infection.

"Acting quickly at the first tingle of a cold sore is important. Keeping lips moisturised, managing stress and supporting immune health can all reduce how often flare-ups occur.”

Superdrug’s Cold Sore Cream can help shorten the duration of an outbreak. And Niamh has a tip for how to treat the virus.

She says: "Always apply with clean hands or a cotton bud to avoid spreading the virus and help the healing process.