Lyme Disease and Ticks: A Guide for UK Travellers and Hikers

Lyme disease, or Lyme borreliosis, is a bacterial infection transmitted to humans through the bite of an infected tick. In the United Kingdom, the primary carrier is the Ixodes ricinus, commonly known as the sheep tick or deer tick. While not all ticks carry the Borrelia burgdorferi bacteria, the number of cases in the UK has been steadily rising, particularly in woodland and heathland areas.

According to NHS guidance, there are approximately 3,000 to 4,000 laboratory-confirmed cases in England and Wales each year, though the actual figure may be higher due to undiagnosed cases. Understanding the risks associated with outdoor activities—such as hiking, camping, or even walking in long grass in urban parks—is vital for early detection and successful treatment.

The Classic Symptom

The most distinctive clinical sign of Lyme disease is a skin rash known as erythema migrans. This typically appears 3 to 30 days after being bitten. It usually starts as a small red papule at the site of the bite and gradually expands. In many cases, it develops a clear centre, giving it the appearance of a 'bullseye' on a target.

• Texture: The rash is usually not itchy or painful.
• Appearance: It can be flat or slightly raised and may appear red, pink, or purple depending on skin tone.
• Size: It can grow up to 30cm across.

It is important to note that roughly 30% of people infected with Lyme disease in the UK do not develop this rash. In these instances, the infection may manifest solely as flu-like symptoms, including fatigue, muscle and joint pain, and a high temperature.

Prevention is the best defence against Lyme disease. When walking in the UK countryside, you should wear long-sleeved shirts and tuck your trousers into your socks. Using an insect repellent containing DEET on your skin and clothes can also significantly reduce the risk of a bite.

How to remove a tick safely

If you find a tick attached to your skin, do not panic. Ticks usually need to be attached for 24 to 48 hours to transmit the bacteria. Follow these steps recommended by NICE (National Institute for Health and Care Excellence):

• Use fine-tipped tweezers or a specific tick-removal tool.
• Grasp the tick as close to the skin as possible.
• Pull upwards slowly and firmly without twisting or squeezing the tick's body.
• Once removed, clean the bite area with antiseptic or soap and water.

Never use petroleum jelly, alcohol, or a lit match to try and remove a tick, as this can increase the risk of the tick regurgitating infected fluids into your bloodstream.

If you have been bitten by a tick or have recently spent time in a high-risk area and feel unwell, seeking medical advice is essential. You should consult a GP—either in person or through an online doctor UK service—if you notice the bullseye rash or experience unexplained fever and joint aches.

An online GP can assess your symptoms, review photos of any rashes, and discuss your travel history. Because Lyme disease is a clinical diagnosis in its early stages, a doctor may prescribe a course of antibiotics immediately if the symptoms are characteristic. This avoids the delay of waiting for blood tests, which are often unreliable in the first few weeks of infection. Accessing a private online GP service can provide a fast, convenient way to get an expert opinion and start treatment without the wait times often associated with local surgeries.

If Lyme disease is suspected or confirmed, the standard treatment is a course of oral antibiotics, typically doxycycline or amoxicillin. Most patients require a 21-day course to ensure the bacteria are fully eradicated. It is vital to complete the entire course, even if you begin to feel better after a few days.

For the majority of UK patients, early antibiotic treatment leads to a full and rapid recovery. However, if the infection is left untreated, it can spread to the nervous system, heart, and joints, leading to long-term complications such as Lyme arthritis or facial palsy. Some people experience 'Post-Treatment Lyme Disease Syndrome', which involves persistent fatigue and aches; your GP can help manage these symptoms through a structured care plan.