What Causes a Rash?
Red, itchy bumps can appear for many different reasons — some you might not expect.
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When you see red, itchy bumps on your skin, you may have a rash. You should avoid scratching the bumps and see a doctor. Some people get rashes when they touch poison ivy or when they come into contact with certain chemicals. Some illnesses such as scarlet fever and measles cause rashes. Some people get rashes when they eat certain types of food such as chocolates, peanuts or cheese. Tiny mites, too small to be seen, can cause a rash too. These might have entered the skin from your surroundings such as your bed or clothes.
Vocabulary
red, itchy bumps or spots that appear on the skin
"When you see red, itchy bumps on your skin, you may have a rash."
a plant whose leaves cause a red, itchy rash when touched
"Some people get rashes when they touch poison ivy."
a contagious illness caused by bacteria, which often causes a red rash
"Illnesses such as scarlet fever and measles can cause rashes."
a contagious illness marked by fever and red spots on the skin
"Measles is one illness that causes a rash."
tiny creatures, too small to see with the naked eye, that can irritate the skin
"Tiny mites from your bed or clothes can cause a rash."