Following five nights of high energy, limited sleep, questionable hygiene, and close contact with thousands, numerous Glastonbury Festival attendees are now reporting flu-like symptoms a week after the event. The much-loved music festival, known for its vibrant atmosphere, appears to leave more than memories — many are battling what’s colloquially known as ‘post-Glasto flu.’
One festivalgoer shared their experience, saying, “For the past few years after Glastonbury, I come down with some form of brutal flu. Despite eating well, drinking water, pacing myself, and showering daily on site, I still feel wiped out. I don’t want to call in sick, but I’m showing up at work shaking and barely able to speak.”
Another attendee observed, “You spend the week in a temporary city where hygiene is often compromised. It’s surprising if anyone makes it through without catching a bug.”
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Concerns have been raised about reliance on hand sanitizer over soap and water. One participant recounted, “I noticed very few people washing with soap after using the toilets — most just used hand sanitizer. I even offered my soap a few times, but people declined. Bringing your own soap next time and washing thoroughly could make a big difference.”
Some admitted their ailments stemmed from indulgences: “I’m feeling rough because of all the lager I drank,” joked one party lover.
Health expert Sarah Jeffries, from the Emergency First Aid at Work Course, explained why falling ill post-festival is so common. “It’s a perfect storm — sleep deprivation, alcohol, poor nutrition, large crowds, and unpredictable weather all weaken your immune system.”
She added, “The environment encourages germs to spread quickly. Combine that with campfire smoke, intense singing, and chilly nights, and it’s no surprise many people get sick afterward.”
For those feeling under the weather, Jeffries advises self-care measures: rest, hydration, and abstaining from alcohol for at least two weeks to help the body recover. “Many festivalgoers drink heavily from Wednesday to Sunday — that stresses your liver and immune system. Give yourself time to detox, rebalance your gut, and recharge.”
If symptoms worsen or include a high fever, Jeffries recommends seeking medical help, as flu-like symptoms can sometimes mask more serious infections like pneumonia.
The NHS advises consulting a GP if cold symptoms persist beyond ten days, a high temperature lasts over three days, or a cough endures for more than three weeks.
With Glastonbury taking a ‘fallow year’ in 2026, festival fans are already thinking ahead. Jeffries suggests preparing in advance: “Boost your immunity with rest, nutritious food, vitamins, and hydration before you go. Pack a first aid kit, dress in layers, and try to get as much sleep as possible during the festival. Your future self will thank you.”