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What causes fatigue and rash? 24 possible conditions

See a list of possible causes in order from the most common to the least.


Dengue Fever

Dengue fever is a disease that affects much of the tropical region and is caused by one of four dengue viruses. A skin rash between two and five days after the initial fever is a common symptom.

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Colorado Tick Fever

An infected Rocky Mountain Wood tick can spread Colorado tick fever, a viral infection. A faint, occasional rash is one symptom of this condition.

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Transfusion Reactions

A transfusion reaction is a rare condition that occurs when a person receives a transfusion with blood that is not matched to their blood type. This may cause symptoms such as back pain, fever, fainting, or dizziness.

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Smallpox is an extremely contagious and deadly virus for which there is no known cure. The last known case occurred in the U.S. in 1949 and due to worldwide vaccination programs, this disease has been completel...

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This feature is for informational purposes only and should not be used to diagnose.
Please consult a healthcare professional if you have health concerns.