Lyme disease is a bacterial infection. You get it when the blacklegged tick, also known as a deer tick, bites you and stays attached for 36 to 48 hours. If you remove the tick within 48 hours, you probably won’t get infected.
When you do get infected, the bacteria travel through your bloodstream and affect various tissues in your body. If you don’t treat Lyme disease early on, it can turn into an inflammatory condition that affects multiple systems, starting with your skin, joints, and nervous system and moving to organs later on.
The chances you might get Lyme disease from a tick bite depend on the kind of tick, where you were when it bit you, and how long the tick was attached to you. You’re most likely to get Lyme disease if you live in the Northeastern United States. The upper Midwest is also a hot spot. But the disease now affects people in all 50 states and the District of Columbia.
What Are the Symptoms of Lyme Disease?
Symptoms can start anywhere from 3 to 30 days after the bite. They may look different depending on the stage of your infection. In some cases, you won’t notice any symptoms until months after the bite.
Early symptoms include:
- Fever
- Chills
- Headache
- Fatigue
- Muscle and joint pain
- Swollen lymph nodes
All of those symptoms are also common in the flu. In most Lyme infections, one of the first symptoms you’ll notice is a rash.
Without treatment, symptoms can get worse. They might include:
- Severe headache or neck stiffness
- Rashes on other areas of your body
- Arthritis with joint pain and swelling, particularly in your knees
- “Drooping” on one or both sides of your face
- An irregular heartbeat
- Inflammation in your brain and spinal cord
- Shooting pains, numbness, or tingling in your hands or feet
What does the rash look like?
Some Lyme rashes look like a bull’s-eye with circles around the middle. But most are round, red, and at least 2 inches across.
The rash slowly gets bigger over several days. It can grow to about 12 inches across. It may feel warm to the touch, but it’s usually not itchy or painful. It can show up on any part of your body.
How small are ticks?
Ticks come in three sizes, depending on their life stage. They can be the size of a grain of sand, a poppy seed, or an apple seed.
How Is Lyme Disease Diagnosed?
Your doctor will diagnose you based on your symptoms and whether you’ve been exposed to a tick. They might also run a blood test. In the first few weeks of infection, the test may be negative because antibodies take a few weeks to show up.
Hopefully soon, there will be tests that can diagnose Lyme disease in the first few weeks after you’re exposed. The earlier you get treated, the less likely it’ll get worse.
What Are the Stages of Lyme Infection?
There are three stages:
- Early localized Lyme: Flu-like symptoms like fever, chills, headache, swollen lymph nodes, sore throat, and a rash that looks like a bull’s-eye or is round and red and at least 2 inches long
- Early disseminated Lyme: Flu-like symptoms like pain, weakness, or numbness in your arms and legs, changes in your vision, heart palpitations and chest pain, a rash (that may nor may not be a bull’s-eye rash), and a type of facial paralysis known as Bell’s palsy
- Late disseminated Lyme: This can happen weeks, months, or years after the tick bite. Symptoms might include arthritis, severe fatigue and headaches, dizziness, trouble sleeping, and confusion.
About 10% of people treated for Lyme infection don’t shake the disease. They may go on to have three core symptoms: joint or muscle pain, fatigue, and short-term memory loss or confusion. This is called post-treatment Lyme disease syndrome. It can be hard to diagnose because it has the same symptoms as other diseases. Plus, there isn’t a blood test to confirm it.
Experts aren’t sure why Lyme symptoms don’t always go away. One theory is that your body keeps fighting the infection even after the bacteria are gone, like an autoimmune disorder.
How Is Lyme Disease Treated?
With early-stage Lyme disease, you’ll take antibiotics for about 10 days to 3 weeks. The most common ones are amoxicillin, cefuroxime, and doxycycline. The antibiotics will almost always cure your infection. If they don’t, you might get other antibiotics either by mouth or as a shot.
If you don’t treat your Lyme infection, you might need oral antibiotics for symptoms like weakened face muscles and irregular heartbeat. You may need antibiotics if you have meningitis, inflammation in your brain and spinal cord, or more severe heart problems.
If your Lyme is late stage, the doctor might give you antibiotics either by mouth or as a shot. If it causes arthritis, you’ll get arthritis treatment.
There’s no therapy for post-treatment Lyme disease syndrome.
What Do You Do If There’s a Tick Under Your Skin?
Use a pair of fine-tipped tweezers to remove it as soon as possible. Pull upward with steady pressure. If parts of the tick are still in your skin, try to get those with the tweezers, too. After everything is out, clean the bite area with rubbing alcohol or soap and water.
You probably won’t get infected if you remove the tick within 36 to 48 hours.
How do you throw away a tick?
Put it in soapy water or alcohol, stick it to a piece of tape, or flush it down the toilet.
When Should You See a Doctor If You Think You Have Lyme?
The rash is a pretty good indication that you may have been bitten. Take a photo of the rash and see your doctor. At this stage, treatment with antibiotics will probably work.
If you don’t have the rash but have symptoms like fatigue, fever, and headache but no respiratory symptoms like a cough, you may want to talk to your doctor.