Bedbug infestations are becoming increasingly prevalent worldwide, with travelers warned of the risks of bringing the pests home from holidays and other trips. The problem is compounded by growing resistance among bedbugs to pyrethroids, the insecticides commonly used to combat them.
Rhona Hutchinson, a businesswoman from Derbyshire, England, returned from a trip to northern France in April with what she initially believed were mosquito bites. Within days of her return, clusters of itchy welts appeared on her arms and neck. Despite applying mosquito repellent and steroid cream, the bites persisted and spread across her body. After consulting online resources, she suspected bedbugs, a diagnosis later confirmed by a pest control exterminator who identified the infestation as originating from her luggage brought back from France.
"I was horrified," Hutchinson stated, noting her personal association of bedbugs with unclean environments, despite her own meticulous habits. Months later, she continues to experience anxiety and struggles with sleep, constantly worried about being bitten, a psychological impact that often outlasts the physical symptoms.
Dr. Richard Naylor, an entomologist and founder of the Bedbug Foundation CIC, explains that bedbug activity peaks between spring and early autumn, with warmer periods contributing to increased numbers. These insects, roughly the size and color of an apple seed, feed exclusively on human blood, attracted by the carbon dioxide humans exhale. They emerge from hiding places at night to feed for a few minutes before retreating.
Bites typically appear as small, intensely itchy red bumps, often in lines or clusters of three or four, sometimes referred to as "breakfast, lunch and dinner." Dr. Sidra Khan, a consultant dermatologist, notes that these bites can resemble severe mosquito bites with significant swelling and inflammation. The reaction is an immune response to proteins in the bedbug's saliva, and individuals who have been bitten before may react more quickly due to hypersensitivity. Approximately one-third of people show no reaction to bedbug bites, while children often exhibit stronger responses.
While bedbugs do not spread disease, excessive scratching can damage the skin barrier, leading to bacterial infections such as impetigo or cellulitis. Prolonged scratching can also cause thickened skin and persistent dark marks, particularly on darker skin tones. Medical advice should be sought for increasing pain, warmth, swelling, or feverish symptoms. Antihistamines can help manage itching, with sedating options recommended for sleep disturbances, though consultation with a pharmacist or doctor is advised.
The psychological impact of bedbug infestations, including insomnia and anxiety, is frequently underestimated. The constant awareness of being bitten can lead to exhausting vigilance, with individuals frequently checking for signs of infestation even after the pests have been eradicated.
Erin Paige, a 24-year-old marketing executive from Wales, experienced significant anxiety after being bitten during a summer trip to Paris. After waking with bites on her leg, she discovered numerous bedbugs and eggs in her budget hotel room. Upon returning to the UK, her mother met her at the airport with plastic bags to contain her belongings, and her clothes were immediately boil-washed. Paige discarded a leather jacket, convinced it was infested. The bites took approximately four weeks to clear, and she remained anxious about bringing the infestation home.
Sarah Spratt, a pest controller, emphasizes that bedbugs are more common than many believe and can be found in various public places, including public transport, taxis, cinemas, and hospitals, anywhere with high foot traffic increases risk. Bedbugs typically hide in bed bases, behind headboards, or in screw holes. Leaving luggage on beds in infested accommodations can lead to bedbugs crawling into bags as a convenient hiding place.
Naylor points to several factors contributing to the surge in bedbug numbers: high levels of resistance to pyrethroid insecticides, increased international travel, the popularity of second-hand furniture, and a decline in routine local council pest control services.
Eradication methods include washing bedding at 60C and tumble drying on a hot setting, vacuuming, and using DIY insecticide sprays. However, widespread infestations often require professional treatment. Professionals may use broader-scale insecticides or heat-treatment equipment. Spratt advises against moving to different rooms within an infested home, as bedbugs will follow.
Hutchinson's experience with professional extermination proved challenging. After an initial treatment seemed successful, she continued to discover more bedbugs and eggs. She has since adopted stringent measures upon returning from travel, including leaving her suitcase outside, washing all clothes at 60C, and vacuuming and spraying her luggage, hoping the next exterminator visit will resolve the issue.