What is it?

Rocky Mountain spotted fever is a bacterial disease spread through the bite of an infected tick. Most people who get sick with RMSF will have a fever, headache, and rash. RMSF can be deadly if not treated early with the right antibiotic.

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Signs & symptoms

Early signs and symptoms are not specific to RMSF (including fever and headache). However, the disease can rapidly progress to a serious and life-threatening illness. See your healthcare provider if you become ill after having been bitten by a tick or having been in the woods or in areas with high brush where ticks commonly live. Signs and symptoms can include:
* Fever
* Headache
* Rash
* Nausea
* Vomiting
* Stomach pain
* Muscle pain
* Lack of appetite


* Be sure to tell your healthcare provider if you become ill and have recently been bitten by a tick or have spent time in areas where ticks may be found.
* Your healthcare provider may order certain blood tests to look for evidence of RMSF.
* The results of these tests can take weeks. If your healthcare provider thinks your illness might be RMSF, he or she should recommend antibiotic treatment before test results are available.


Early treatment with the antibiotic doxycycline can prevent death and severe illness. Doxycycline is the recommended antibiotic treatment for RMSF in adults and children of all ages.

☝️ This is not a substitute for professional medical advice. Please consult with your physician before making any medical decision.

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