Removal · field guidance

Doxycycline criteria #4: 72-hour window from removal

Single-dose prophylaxis must start within 72 hours of tick removal to be considered effective; after that, observe and treat if symptoms appear.

Steps

schema.org/HowTo

01
Note the exact time of removal, not the time you noticed the tick.
02
The 72-hour clock starts at removal.
03
If you are within the window and meet the other three criteria, contact a clinician promptly (telehealth often works).
04
If you are past 72 hours, prophylaxis is not indicated; switch to the 30-day symptom watch.
05
Outside the window, treatment is reserved for actual signs of infection (rash, fever, joint pain).

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