Measles – causes, symptoms and treatment

Measles is a highly infectious viral illness that can be very unpleasant and sometimes lead to serious complications. 

Anyone can get measles if they haven’t been vaccinated or they haven’t had it before, although it’s most common in young children.

The infection usually clears in around 7 to 10 days.

Symptoms of measles

The initial symptoms of measles develop around 10 days after you’re infected.

These can include:

  • cold-like symptoms, such as a runny nose, sneezing, and a cough
  • sore, red eyes that may be sensitive to light
  • a high temperature (fever), which may reach around 40C (104F)
  • small greyish-white spots on the inside of the cheeks

A few days later, a red-brown blotchy rash will appear. This usually starts on the head or upper neck, before spreading outwards to the rest of the body.

When to see your doctor

You should contact your doctor as soon as possible if you suspect that you or your child may have measles.

It’s best to phone before your visit as your doctor surgery may need to make arrangements to reduce the risk of spreading the infection to others.

You should also see your doctor if you’ve been in close contact with someone who has measles and you’ve not been fully vaccinated (had two doses of the MMR vaccine) or haven’t had the infection before – even if you don’t have any symptoms.

Is measles serious?

Measles can be unpleasant, but will usually pass in about 7 to 10 days without causing any further problems.

Once you’ve had measles, your body builds up resistance (immunity) to the virus and it’s highly unlikely you’ll get it again.

However, measles can lead to serious and potentially life-threatening complications in some people. These include infections of the lungs (pneumonia) and brain

How measles is spread

The measles virus is contained in the millions of tiny droplets that come out of the nose and mouth when an infected person coughs or sneezes.

You can easily catch measles by breathing in these droplets or, if the droplets have settled on a surface, by touching the surface and then placing your hands near your nose or mouth. The virus can survive on surfaces for a few hours.

People with measles are infectious from when the symptoms develop until about four days after the rash first appears.

How measles can be prevented

Measles can be prevented by having the measles, mumps and rubella (MMR) vaccine.

The first dose is given when your child is around 13 months old and a second dose is given before your child starts school.

Adults and older children can be vaccinated at any age if they haven’t been fully vaccinated before. Ask your GP about having the vaccination.

If the MMR vaccine isn’t suitable for you, a treatment called human normal immunoglobulin (HNIG) can be used if you’re at immediate risk of catching measles.

Treating measles

There are several things you can do to help relieve your symptoms and reduce the risk of spreading the infection, including:

  • taking paracetamol or ibuprofen to relieve fever, aches and pains – aspirin should not be given to children under 16 years old
  • drinking plenty of water to avoid dehydration
  • closing the curtains to help reduce light sensitivity
  • using damp cotton wool to clean the eyes
  • staying off school or work for at least four days from when the rash first appears

In severe cases, especially if there are complications, you or your child may need to be admitted to hospital for treatment.

 

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