Rosary Catholic Primary School

Rosary Catholic Primary School
Rosary Catholic Primary School

“Very exciting... you have fun here!”
- Alejandro

“We respect each other like a family”
- Megan

“Coming here will give you a good education is an amazing school”
- Charlotte

“The Rosary School is a fantastic place... It's a peaceful paradise for learning”
- Laurance

“When I joined in Y1 everyone was accepting and made me feel welcome”
- Abraham

“I don't want to leave because of the great memories I have made here”
- Hannah

“Everyone treats each other like an equal”
- Grace

“We are like one big family, who achieve the best!”
- Toby

“ achieve high levels and get lots of support”
- Findlay

Life at Rosary Catholic Primary School Life at Rosary Catholic Primary School Life at Rosary Catholic Primary School

Threadworms Information

Treating Threadworms 

To successfully treat threadworms, all household members must be treated, even if they have no symptoms.

The aim of treatment is to get rid of the threadworms and prevent re-infection. To do this, you can either:

  • Follow strict hygiene measures (see below) for six weeks.
  • Take medication and follow strict hygiene measures for two weeks.

Some treatments are available from your local pharmacy without prescription. Always follow the manufacturer’s instructions because they may not be suitable for everyone.

Visit your GP if you think that you have threadworms and you:

  • are pregnant or breastfeeding
  • your child has threadworms and they are under two years old 

See below for treatment advice for pregnant and breastfeeding women and babies.

Hygiene method

Strict hygiene measures can be used to clear up a threadworm infection and reduce the likelihood of re-infection.

The life span of threadworms is approximately six weeks, so it's important that the hygiene methods are followed for six weeks. Everyone in the household must follow the advice outlined below.

  • Wash all night clothes, bed linen, towels and soft toys when you are first diagnosed. This can be done at normal temperatures but make sure that the washing is well rinsed.
  • Thoroughly vacuum and dust the whole house, paying particular attention to the bedrooms. Continue to vacuum regularly and thoroughly.
  • Carefully clean the bathroom and kitchen by damp-dusting surfaces and washing the cloth frequently in hot water. Continue to clean bathroom and kitchen surfaces regularly and thoroughly.
  • Avoid shaking any material that may be contaminated with eggs, such as clothing or bed sheets. This will help prevent eggs being transferred to other surfaces.
  • Don't eat food in the bedroom, because you may end up swallowing eggs that have been shaken off the bedclothes.
  • Keep your fingernails short. Encourage other members of your household to do the same.
  • Discourage nail-biting and sucking fingers. In particular, make sure that children don't suck their thumb.
  • Wash your hands frequently and scrub under your fingernails, particularly before eating, after going to the toilet and before and after changing your baby's nappy.
  • Wear close-fitting underwear at night and change your underwear every morning.
  • Bath or shower regularly, particularly first thing in the morning. Make sure that you clean around your anus and vagina to remove any eggs.
  • Ensure that everyone in your household has their own face flannel and towel. Don't share towels.
  • Keep toothbrushes in a closed cupboard and rinse them thoroughly before use.

Children can easily pick up another threadworm infection from friends or at school, so maintaining good hygiene may help prevent another outbreak.


Medication can be used to treat threadworms. It should be taken by everyone in the household.

The risk of transmission between household members is high (around 75%), which means that everyone in the household is likely to be infected, even if they don't have any symptoms.

Mebendazole and Piperazine are two medications that are commonly used to treat threadworm infections.


Mebendazole works by preventing the threadworms from being able to absorb glucose, which means that they will die within a few days.

Mebendazole is the preferred treatment for children over two years old. It can be bought over the counter from your local pharmacy or prescribed by your GP and is available as a chewable tablet or as a liquid.

As threadworm re-infections are very common, a second dose of Mebendazole may be prescribed to be taken after two weeks. You should follow the dosage information on the label or in the patient information leaflet that comes with the medicine.

In rare cases, Mebendazole can cause abdominal pain or diarrhoea, particularly if the threadworm infection is severe.


Piperazine paralyses the threadworms until they are passed naturally out of the bowel. It is combined with a medication called Senna, which has a laxative effect to expel the worms more quickly.

Piperazine and Senna usually come in a sachet of powder, which you mix with a small amount of milk or water before drinking.

Piperazine can be used to treat children who are between the ages of three months and two years old. As re-infection is very common, a second dose may be taken after two weeks.

Dosage information will be provided on the label or in the patient information leaflet that comes with Piperazine.

Piperazine is not recommended if you have epilepsy (a condition that causes seizures) or problems with your liver or kidneys.

Mebendazole and Piperazine are 90%-100% effective at killing the threadworms, but they don't kill the eggs. Therefore, the hygiene measures outlined above should be followed for two weeks after treatment.

Visit your GP if the infection continues after treatment. They may recommend that you begin a second course of medication.

Pregnancy and breastfeeding

If you are pregnant or breastfeeding, medication is usually not recommended. To treat threadworms, use the hygiene method.

See your GP if you are more than three months pregnant or if you are breastfeeding and you experience problems treating a threadworm infection using only the hygiene method. In certain circumstances, your GP may consider prescribing medication.

Babies under three months old

Medication is not recommended for babies under three months old who have a threadworm infection. Instead, follow the hygiene method.

Make sure that you wash your baby’s bottom gently but thoroughly every time you change their nappy. Also wash your hands thoroughly before and after changing their nappy.

Threadworms, also known as pinworms, are tiny parasitic worms that hatch eggs in and infect the large intestine of humans.

Threadworms are the most common type of worm infection in the UK, and they are particularly common in young children, infecting up to half of all children under the age of 10.  

Threadworms are white and look like a small piece of thread. You may notice them around your child's bottom or in your or your child's stools (poo).

They don't always cause symptoms. Some people notice itchiness around their anus (back passage) or vagina, which can be worse at night and can sometimes disturb sleep.

Read more about the symptoms of threadworms.

You can treat threadworms yourself with medication available at pharmacies. However, treatment does not kill the eggs hatched by threadworms. Good hygiene is the only way to prevent the eggs from spreading and causing further infection.

See your GP if you think that you have threadworms and:

  • You're pregnant or breastfeeding
  • Your child has threadworms and they are under the age of two.

How are threadworms spread?

Threadworms are spread from person-to-person as a result of poor hygiene. If one member of a household is infected, there is a high risk that other members will also be infected.

It is therefore necessary to treat the entire household and to practice particularly thorough hygiene for six weeks (this is how long the worms live) to prevent re-infection.

Read more about treating threadworm infections.

Preventing threadworms

Threadworms can be prevented from occurring by always maintaining good hygiene.

Children should wash their hands regularly, particularly after going to the toilet and before mealtimes. Kitchen and bathroom surfaces should be kept clean.  

Encouraging your children not to scratch the affected area around their anus or vagina (in girls) will help prevent re-infection and help to avoid a skin infection.

As itching is worse at night, wearing cotton gloves while sleeping may help.

Threadworm life cycle

Threadworms lay their eggs around an infected person's anus (back passage), usually at night. Along with the eggs, the worm also secretes a mucus that causes itching.

If the eggs get stuck on the person’s fingertips when they scratch, they can be transferred to their mouth or onto surfaces and clothes. Other people who touch an infected surface can then transfer the eggs to their mouth.

Threadworm eggs can survive for up to three weeks before hatching. If the eggs hatch around the anus, the newly born worms can re-enter the bowel. Eggs that have been swallowed will hatch inside the intestine. After two weeks, the worms reach adult size and begin to reproduce, starting the cycle again.

Humans are thought to be the only host for threadworms. Animals can't catch or pass on threadworms, unless the eggs are transported on the animal’s fur after contact from an infected person.