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

Lyme disease, or Lyme borreliosis, is a bacterial infection spread to humans by infected black-legged ticks. In the United Kingdom, these ticks are often found in woodland, moorland, and areas with tall grass. According to NHS data, there are roughly 3,000 to 4,000 cases of Lyme disease confirmed in England and Wales each year, though the actual number may be higher due to under-reporting.

Ticks do not fly or jump; instead, they wait on vegetation and cling to animals or humans as they brush past. Once on the body, they crawl to find a warm, moist area—such as the armpits, groin, or behind the knees—to attach and feed on blood. If a tick is carrying the Borrelia burgdorferi bacteria, it can transmit the infection to the host, typically after being attached for 24 to 48 hours.

The most characteristic sign of Lyme disease is an expanding circular rash known as erythema migrans. It often resembles a bullseye on a dartboard, with a central red spot surrounded by a clear area and an outer red ring. However, it is important to note that about one-third of people infected with Lyme disease do not develop this rash.

Early Stage Symptoms (1–4 weeks)

• A circular or oval red rash (bullseye rash) that can grow up to 30cm in diameter.
• Flu-like symptoms including high temperature, chills, and muscle aches.
• Headache and persistent fatigue.
• Swollen lymph nodes near the site of the bite.

The rash is typically not itchy or painful, but it may feel slightly warm to the touch. If left untreated, the infection can spread to the joints, heart, and nervous system, leading to more complex symptoms such as facial drooping (Bell's palsy), nerve pain, and heart palpitations.

If you find a tick attached to your skin, you must remove it as soon as possible. The risk of Lyme disease increases the longer the tick remains attached. Public Health England and NICE guidelines recommend the following steps for safe removal:

• Use fine-tipped tweezers or a specialized tick-removal tool (available from most UK pharmacies).
• Grasp the tick as close to the skin's surface as possible, near its mouthparts.
• Pull upwards with steady, even pressure. Do not jerk or twist the tick, as this can cause the mouthparts to break off and remain in the skin.
• Do not squeeze or crush the body of the tick, as this may force infected fluids into your bloodstream.
• After removal, clean the bite area and your hands thoroughly with rubbing alcohol or soap and water.

Avoid traditional 'folk remedies' such as using a lit match, cigarette ends, or covering the tick in petroleum jelly or nail varnish. these methods are ineffective and can increase the risk of infection.

Whether you are hiking in the Scottish Highlands, walking in the New Forest, or travelling to tick-prone areas abroad (such as parts of Europe or North America), prevention is the best line of defence. Following these simple steps can significantly reduce your risk:

• Cover up: Wear long-sleeved shirts and tuck your trousers into your socks when walking in long grass or wooded areas.
• Use Repellent: Apply insect repellent containing DEET to exposed skin and clothing.
• Stick to Paths: Avoid walking through dense vegetation where ticks are most likely to be waiting.
• Check Your Body: After spending time outdoors, perform a thorough 'tick check' on yourself, your children, and your pets. Pay close attention to hidden areas like the scalp and navel.
• Wash Clothing: Tumble dry clothes on a high heat setting for 10 minutes to kill any ticks that may have hitched a ride.

If you have been bitten by a tick and develop a rash or flu-like symptoms, you should seek medical advice promptly. You can speak to a GP online via OnlineDoctor24 for an assessment of your symptoms and the bite site. Early treatment with antibiotics is highly effective and usually prevents long-term complications.

During a consultation, the GP will ask about your travel history and the appearance of the rash. If Lyme disease is suspected based on the 'bullseye' appearance, a clinical diagnosis is often made immediately without the need for a blood test, as tests can often be negative in the very early stages of infection. If you have symptoms but no rash, a blood test may be arranged to look for antibodies, though these can take several weeks to appear.

The standard treatment for Lyme disease in the UK involves a course of oral antibiotics, typically doxycycline or amoxicillin, lasting between 10 and 21 days. Most people make a full recovery when treated early. If the infection is diagnosed in a later stage, longer courses of antibiotics or intravenous (IV) treatment may be required under the supervision of a specialist.

Some patients experience lingering symptoms like fatigue and muscle aches even after finishing treatment. This is sometimes referred to as 'post-treatment Lyme disease syndrome'. While the cause is not fully understood, it is not believed to be due to an active infection, and further antibiotics are generally not recommended by NICE for these chronic symptoms.