How long it takes to recover from scrub typhus?

Question

Hi doctor.

I am a 44-year-old male, and I recently went on a trekking trip. About a week after returning, I developed a high fever, chills, muscle pain, and a headache. I assumed that it was just a viral infection, but then I noticed a small, painless black scab (eschar) near my ankle.

I went to the hospital, and my bloodwork showed a low platelet count (75,000/µL), elevated liver enzymes (AST: 240, ALT: 210), and high C-reactive protein (CRP: 65 mg/L). My white blood cell count was normal (WBC: 5,800/µL), but my doctor is considering scrub typhus. They have sent off confirmatory tests but have not started treatment yet.

I read that scrub typhus can become severe if left untreated. Should I start Doxycycline now, or should I wait for the test results? How long does it take to recover, and could this lead to long-term complications such as organ damage?

Answer 1

Hello,

Welcome to icliniq.com.

I read your query and can understand your concern.

Your symptoms are indicative of scrub typhus. A black scab (eschar) is a hallmark sign, and symptoms alone are usually sufficient for diagnosis. You must start Doxycycline immediately and should not wait for test results.

I advise you to do the following:

Take the tablet Doxycycline (100 mg) twice daily. If doxycycline(tetracycline) is not available or if you are allergic, you can take the tablet Azithromycin (500 mg) once daily instead. Continue the treatment for seven to ten days.

If you do not feel better within 24-48 hours of starting the medication or if your symptoms worsen, switch to intravenous medication.

If this is not scrub typhus, Doxycycline will not harm you, but early treatment can be life-saving if it is scrub typhus.

Waiting for test results, which can take days, is dangerous. Scrub typhus can lead to organ failure, encephalitis, or respiratory distress if untreated.

Delaying treatment increases the risk of complications such as

Brain inflammation, kidney failure, and septic shock.

If not treated, complications can develop rapidly, and severe cases may require ICU (intensive care unit) care.

With early Doxycycline treatment, fever usually improves within 48 hours. Most people recover within 7–10 days, but fatigue can linger for weeks. Recovery may take longer in immunocompromised patients or those with severe infections.

If scrub typhus is severe or treatment is delayed, you could develop:

Neurological issues (brain inflammation, confusion, long-term cognitive effects).

Lung complications (pneumonitis, respiratory failure).

Kidney injury or liver damage.

Hearing loss (in rare cases).

Start doxycycline now and do not wait for test results. If your symptoms worsen, go to the emergency room immediately. Get follow-up blood tests in a few days to monitor platelet count, liver function, and inflammation markers. Liver enzymes may remain mildly elevated for some time after recovery, which is normal after an infection. Just ensure they do not become significantly higher.

If you experience confusion, blurry vision, or memory issues, ask for an MRI (magnetic resonance imaging) and lumbar puncture. For breathlessness, chest pain, or chest tightness, request a chest X-ray or CT (computed tomography) scan and an ECG (electrocardiogram).