Lyme Disease and Ticks: A Guide to Prevention and Recovery for UK Travellers

Lyme disease, also known as Lyme borreliosis, is a bacterial infection caused by the Borrelia burgdorferi bacterium. In the United Kingdom, it is transmitted to humans through the bite of an infected black-legged tick, commonly referred to as a deer tick. These tiny arachnids are often found in woodland, heathland, and areas with tall grass, including urban parks.

While not every tick carries the bacteria, the number of cases in the UK has been rising. According to NHS data, there are an estimated 3,000 to 4,000 new cases of Lyme disease each year in England and Wales. Understanding how to identify these parasites and the early signs of infection is crucial for anyone enjoying the British countryside or travelling to temperate regions abroad.

The most distinctive symptom of Lyme disease is erythema migrans, frequently described as a 'bullseye' rash. This rash typically appears at the site of the bite within 3 to 30 days, though it usually surfaces around week one or two. The rash is generally circular or oval, and as it expands, the centre may clear, giving it the appearance of a target.

• Appearance: It is usually not itchy or painful, but it may feel slightly warm to the touch. On darker skin, the rash may look like a bruise or a dark patch.
• Flu-like symptoms: Many patients experience fatigue, muscle and joint pain, headaches, and a high temperature or chills.
• Multiple rashes: In some cases, multiple rashes may appear on different parts of the body as the infection spreads.

It is important to note that roughly one in three people with Lyme disease do not develop a rash at all, making it vital to monitor for systemic symptoms if you know you have been bitten.

If you find a tick attached to your skin, do not panic. The risk of transmission is low if the tick is removed within the first 24 hours. However, you must remove it correctly to avoid squeezing the stomach contents into your bloodstream.

The Correct Technique

• Use a tick-removal tool or fine-tipped tweezers.
• Grasp the tick as close to the skin as possible (the head/mouthparts).
• Pull upwards slowly and firmly without twisting or jerking, as this can cause the head to break off.
• After removal, clean the bite area with antiseptic or soap and water.
• Do not use fingernails, matches, oils, or nail varnish to 'suffocate' the tick, as these methods are ineffective and increase infection risk.

The National Institute for Health and Care Excellence (NICE) provides clear pathways for diagnosing and treating Lyme disease in the UK. If a patient presents with a characteristic erythema migrans rash, a GP should diagnose Lyme disease clinically and start antibiotic treatment immediately without waiting for a blood test.

For those without a rash but with suggestive symptoms, a blood test called an ELISA is usually the first step. If this is positive or symptoms persist, a second, more specific test called a Western Blot is performed. Treatment usually involves a 2-to-3-week course of doxycycline or amoxicillin. Most people make a full recovery, especially when treated early.

If you have recently spent time outdoors and notice a rash or feel unwell, seeking medical advice is essential. An online doctor in the UK can be a convenient way to get a professional assessment, especially if you have a photo of the rash or the tick that bit you.

You should book a consultation if:

• You have a rash that looks like a bullseye.
• You have flu-like symptoms (fever, aches, fatigue) following a tick bite or a walk in the woods.
• You were unable to remove a tick completely and the site looks infected (redness, swelling, or pus).
• You are concerned about a bite and need advice on whether preventive treatment is required.

Online GPs can review photos of your skin, discuss your symptoms, and provide a private prescription for antibiotics if Lyme disease is suspected, ensuring you start treatment without delay.

Prevention is always better than cure, particularly when trekking or camping. To reduce your risk of tick-borne illnesses:

• Cover up: Wear long-sleeved shirts and tuck your trousers into your socks. Light-coloured clothing makes it easier to spot dark ticks crawling on you.
• Use repellent: Apply an insect repellent containing DEET to your skin and clothing.
• Stay on paths: Avoid walking through long grass or bracken where ticks wait for a host.
• Check yourself: Perform a thorough 'tick check' on yourself, children, and pets after being outdoors. Pay close attention to the backs of knees, groin, armpits, and the hairline.