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What causes headache and itching? 16 possible conditions

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


Allergies Overview

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

An allergy is the immune system's response to a foreign substance (allergen) that is not typically harmful to a person's body. This attack response may involve inflammation, sneezing, and a host of other symptoms.

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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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Poisoning Due to Black Widow Spider Venom (Black Widow Spider Bites)

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

A black widow spider bite may cause redness and swelling in the area of the bite before more serious symptoms develop, including pain in the chest and abdomen, and muscle cramps.

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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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Chemical Burns

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

Chemical burns occur when the skin or eyes come into contact with irritants, such as acids or bases. Symptoms vary, but skin reactions, pain or numbness are common.

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Hepatitis A

Hepatitis A (HAV) is a short-term type of hepatitis. It usually requires no treatment, but symptoms include fever, nausea, jaundice, and itchy skin, among others.

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Learn about sarcoidosis and its causes, symptoms, diagnosis, treatment, and potential complications.

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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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Medullary Cystic Disease

Medullary cystic kidney disease is a rare condition that causes cysts to form on kidneys. Kidney failure may result, symptoms of which can include changes in skin color and itchy skin.

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Yellow fever

Yellow fever is a serious, potentially deadly flu-like disease spread by mosquitoes. It's found mostly in Africa and South America. Symptoms of stage 3 yellow fever include abdominal pain, vomiting, and jaundice.

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Chronic Kidney Disease

Chronic kidney disease (CKD) is the progressive and irreversible destruction of the kidneys. The most common causes of CKD are high blood pressure and diabetes.

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End-Stage Kidney Disease

In end-stage kidney disease, also known as end-stage renal disease (ESRD), the kidneys are functioning below 10 percent of their normal function.

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Glomerulonephritis is a serious illness that can be life-threatening and requires immediate treatment. The condition is sometimes called nephritis.

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Diabetic Nephropathy

Diabetic nephropathy is a type of progressive kidney disease that occurs in people who have type 1 or type 2 diabetes. The University of Washington estimates that 20 to 40 percent of people with diabetes will ge...

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Polycythemia Vera

Polycythemia vera is a disorder in which the body produces an excessive amount of red blood cells. This can lead to clots, which block blood from reaching the heart or brain, causing serious damage.

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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.