What to Do After a Tick Bite: First 72 Hours Checklist

Quick answer

Remove the tick right away with fine-tipped tweezers, pulling straight up. Clean the bite and your hands. Write down the date and place, and save or photograph the tick so it can be identified. If it was a blacklegged tick attached 36 hours or more in a high-risk area, call a clinician within 72 hours of removal about a preventive antibiotic. Then watch for 30 days.

What the guidelines say

CDC’s guidance for clinicians says a single dose of an antibiotic may be considered after a tick bite only when all of these are true:

The bite happened in a high-incidence state, or in an area where more than 20% of ticks are infected (your local health department can tell your clinician).
The tick was an adult or nymph (young) blacklegged tick.
It was attached for an estimated 36 hours or more, judged by how engorged it is or how long you could have been exposed.
The medicine can be started within 72 hours of removing the tick.
You have no medical reason you can’t take doxycycline.

The 2020 IDSA/AAN/ACR guideline recommends this single preventive dose for high-risk bites in people of all ages, and watchful waiting when a bite can’t confidently be called high-risk. Pregnant people should talk through risks and benefits with their doctor. Your clinician decides whether it fits and what to prescribe.

Two approaches at a glance

Preventing Lyme after a tick bite

	IDSA / AAN / ACR2020 guideline (followed by CDC)	ILADS2014 guideline
Who is offered antibiotics	Only people with a high-risk bite: an identified blacklegged (Ixodes) tick, in a highly endemic area, attached 36 hours or more, with treatment started within 72 hours of removal. Otherwise, wait and watch.	Anyone with a known blacklegged (Ixodes) tick bite where there is evidence the tick fed, no matter how engorged it was or how common infected ticks are locally.
Preferred approach	A single dose of doxycycline, preferred over watching alone.	Recommends against the single dose. Preferred: a 20-day course of doxycycline; other options case by case.
Evidence rating (their own)	Strong recommendation; high-quality evidence for limiting it to high-risk bites, moderate-quality for the single dose.	Recommendation based on very low-quality evidence.

Sources: IDSA/AAN/ACR 2020 guideline (sections III and IV); ILADS 2014 guideline (recommendations 1a and 1b). The IDSA/AAN/ACR guideline is the mainstream U.S. guideline; CDC says its treatment regimens are consistent with it; the ILADS guideline is used by some clinicians, often called “Lyme-literate.” Both groups say they used GRADE; ILADS gives more weight to individual clinical judgment. Beat Lyme does not endorse either approach. Talk with your own clinician. How the two guidelines differ.

Tick bite checklistPrint it or screenshot it

Right away

Grab the tick close to the skin with fine-tipped tweezers and pull straight up, slowly and steadily.
No twisting, crushing, heat, nail polish or petroleum jelly.
Wash the bite and your hands (soap and water, rubbing alcohol or hand sanitizer).
Check the rest of your body, and your kids and pets, for more ticks.

Same day

Note the date, where on your body, and where you picked it up (town, trail, yard).
Estimate how long it could have been on you (when were you last tick-free?).
Save the tick in rubbing alcohol or a sealed bag or container (or a sealed bag in the freezer).
Photograph the tick (top and bottom) and the bite, with a coin or ruler for scale.

Within 1 to 2 days

Get the tick identified: your clinician, health department, or a free photo ID service.
Check whether the bite happened in a high-risk area.
Blacklegged tick, possibly attached 36+ hours? Call your clinician now.

Before 72 hours after removal

Decide with your clinician whether a single preventive dose makes sense.

Days 3 to 30

Look at the bite every day. Photograph any rash and how it changes.
Write down any fever, chills, headache, tiredness, aches or swollen glands.
Rash or fever? Call your clinician and mention the bite.

Right away: remove the tick and clean up

CDC says to remove an attached tick as soon as possible, rather than waiting to see a provider. Use clean, fine-tipped tweezers, grasp the tick as close to the skin as you can, and pull upward with steady, even pressure. Twisting or jerking can leave mouthparts behind. If that happens, try to lift them out with tweezers, but if they won’t come easily, leave them; your skin usually pushes them out as it heals.

Skip folk remedies. CDC warns that petroleum jelly, heat, nail polish and similar tricks can agitate the tick. Then clean the bite and your hands, and look for more ticks. Our tick bite guide has more on what a normal bite looks like.

Same day: write it down and save the tick

Your clinician’s decisions will depend on three things you can record now: what kind of tick it was, how long it was attached, and where you got it. A quick note on your phone with the date, location and a photo is enough. CDC’s clinician guidance asks that the tick be saved so its species and engorgement can be checked. Put a live tick in rubbing alcohol or a sealed bag or container; university tick programs also suggest freezing it in a sealed bag.

Within 1 to 2 days: identify the tick

Only blacklegged ticks (and western blacklegged ticks on the Pacific coast) spread Lyme disease in the U.S.; CDC says lone star and American dog ticks do not. See ticks that carry Lyme disease. Identification is useful, but testing the tick for germs is not recommended for deciding treatment. Our page on tick testing explains why and lists free photo ID programs.

Before 72 hours: ask about a preventive antibiotic

Most tick bites do not need antibiotics. The single preventive dose is meant for the high-risk bites described in the box above. Attachment time matters because, according to CDC, a tick generally has to be attached more than 24 hours to spread Lyme bacteria; see how long a tick needs to be attached. To check whether your area is high-risk, see our risk map.

Two cautions from the guidelines. First, the preventive dose doesn’t guarantee you won’t get infected, so you still need to watch for symptoms. Second, CDC says preventive antibiotics have not been shown to prevent other tickborne illnesses such as anaplasmosis, babesiosis, ehrlichiosis or Rocky Mountain spotted fever. You may see older consumer pages that list extra limits, such as a minimum age; the current guideline recommends the preventive dose for high-risk bites at any age, so ask your clinician what applies to you.

Days 3 to 30: what to watch for

The guideline says to watch for an expanding rash, fever or other unexplained illness, especially in the 30 days after the bite. CDC says early Lyme symptoms usually begin 3 to 30 days after a bite:

An expanding rash (erythema migrans) at or near the bite, appearing after about 7 days on average. It may feel warm, is rarely itchy or painful, and sometimes clears in the middle. See Lyme disease rash.
Flu-like symptoms, with or without a rash: fever, chills, headache, fatigue, muscle and joint aches, swollen lymph nodes.

You don’t need a blood test right after a bite if you feel fine: the guideline advises against testing people without symptoms, and CDC notes antibody tests can be falsely negative in the first few weeks. More in our Lyme disease symptoms guide.

What patients tell us

We are collecting real experiences about the first days after a tick bite from people who have lived it, shared with their permission. As stories come in, they will appear here, clearly marked as personal experience rather than medical advice.

Share your experience

When to see a doctor urgently

When to seek urgent care

Call your clinician if you develop a rash or fever in the weeks after a bite, and tell them when and where it happened (CDC).
Seek care promptly for drooping on one side of the face, heart palpitations or an irregular heartbeat, dizziness or shortness of breath, a severe headache with a stiff neck, or numbness, tingling or weakness after a tick bite.
Call 911 for chest pain, fainting or severe trouble breathing.

Frequently asked questions

Should I take antibiotics after every tick bite?

No. CDC guidance limits a single preventive dose to bites that meet all of its criteria: a blacklegged tick, attached an estimated 36 hours or more, in a high-incidence area, started within 72 hours of removal, with no reason you can’t take doxycycline. For other bites, guidelines favor watching for symptoms.

What if more than 72 hours have passed since I removed the tick?

The guidelines describe starting a preventive dose within 72 hours of removal. After that, the usual approach is to watch for symptoms for about 30 days and see a clinician if a rash, fever or other illness appears.

Do I need a blood test right after a tick bite?

Not if you feel well. The 2020 IDSA/AAN/ACR guideline advises against testing people without symptoms after a tick bite, and CDC notes antibody tests can be falsely negative in the first few weeks of infection.

What if part of the tick stays in my skin?

Try to remove the mouthparts with clean tweezers. If you can’t remove them easily, CDC says to leave them alone and let the skin heal; they usually work their way out.

How long should I watch for symptoms after a tick bite?

The guideline highlights the first 30 days. Some later Lyme symptoms, like facial drooping or joint swelling, can appear days to months after a bite, so mention any tick bite if you feel unwell later.

The First 72 Hours After a Tick Bite: A Checklist