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What causes chills and rash? 17 possible conditions

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



This condition is considered a medical emergency. Urgent care may be required.

One life-threatening complication of infection is sepsis, which often occurs in people who are elderly or have weak immune systems. Patches of discolored skin is a symptom of severe sepsis.

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Leukemia is a cancer of the blood cells. Excessive sweating at night, constant fatigue, weight loss, bone pain, and easy bleeding or bruising are all signs of this disease.

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The Atypical Facts About Atypical Pneumonia

Atypical pneumonia that is caused by mycoplasma bacteria, one possible symptom is a rash.

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Infectious Mononucleosis

Infectious mononucleosis, or "mono," is a group of symptoms caused by the Epstein-Barr virus. One potential symptom is a pink rash that looks like the measles.

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Shingles is an infection caused by the varicella-voster virus, which also causes chickenpox. Following pain and burning,fluid-filled blisters that break easily are common symptoms.

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Scarlet Fever

Scarlet fever is an infection that may develop after strep throat. It usually affects children between six and 15 years old. It can cause a rash that consists of small red bumps and feels like sandpaper.

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Lyme Disease

Lyme disease is an infectious condition transmitted via tick bite. A "bull's eye" rash at the site of the bite is an early symptom of this disease.

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Histoplasmosis is a noncommunicable disease caused by certain fungal spores. Red bumps on the lower legs are one sign of this condition.

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Systemic Gonococcal Infection

Gonorrhea is a sexually transmitted infection. One of its symptoms is a skin rash containing pink and/or red spots that become filled with pus.

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Addisonian Crisis (Acute Adrenal Crisis)

This condition is considered a medical emergency. Urgent care may be required.

People with Addison's disease don't make enough cortisol or aldosterone. Addisonian crisis is a potentially life-threatening condition indicated by nausea, abdominal pain, fever, and chills.

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Toxic Shock Syndrome

This condition is considered a medical emergency. Urgent care may be required.

Toxic shock syndrome is a rare, serious condition caused by a bacterial infection. Rash is one of several common signs for this symptom.

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Diphtheria is a sometimes fatal bacterial infection that affects the nose and throat's membranes. Diptheria of the skin may show up as a red rash.

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SARS (Severe Acute Respiratory Syndrome)

This condition is considered a medical emergency. Urgent care may be required.

Severe acute respiratory syndrome (SARS) is a particularly serious form of viral pneumonia. In addition to fever, dry cough, breathing problems, and several other symptoms, one symptom of SARS is a rash.

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Typhus fevers are caused by a bacteria that is transmitted by bites from fleas, ticks, mites, and other arthropods. Rash is a common symptom of typhus.

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Weils Disease

Weil's disease is a severe form of the bacterial infection leptospirosis, which can lead to organ failure and bleeding. Symptoms include nausea, fever, headache, and jaundice.

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