Preventing threadworms Kitchen and bathroom surfaces should be kept clean. If your child is infected, encouraging them not to scratch the affected area around their anus or vagina will help prevent reinfection and reduce the risk of the infection spreading to others.
Your children may come into contact with eggs in schools or nurseries, particularly in the toilets if they are not cleaned properly. This is why your child may have recurring threadworms, even if your home and personal hygiene are of a very high standard.
Reinfection does happen with pinworm
Reinfection can happen by touching surfaces that have already been contaminated with pinworm eggs by another person. Eggs are swallowed, usually after hand-to-mouth contact, and the pinworm infection begins again.
To treat pinworm infection, your doctor may recommend over-the-counter pyrantel pamoate or prescribe medication to all members of your household to prevent infection and reinfection. The most common prescription anti-parasite medications for pinworms are: Mebendazole. Albendazole (Albenza)
The medications used for the treatment of pinworm are either mebendazole, pyrantel pamoate, or albendazole. Any of these drugs are given in one dose initially, and then another single dose of the same drug two weeks later. Pyrantel pamoate is available without prescription.
To remove threadworm eggs and prevent re-infection: Change and wash underwear, nightwear and, if possible bed linen and towels, every day for a few days. A hot water wash, or the heat of an iron, will kill the eggs. Do not shake bed linen indoors as this can spread eggs around.
Chlorine dioxide gas inactivates pinworm eggs in a non-invasive and non-corrosive manner.
Good hygiene will clear any eggs from the body and the home, and prevent any eggs from being swallowed. This will then break the cycle of 're-infection'. Every member of the household should do the following for two weeks after the first dose of medicine.
If you or your child have threadworms that won't go away or keep coming back, speak to a doctor. You should also see a doctor if you see slime or blood in poo, even if you don't have other symptoms of a threadworm infection.
COMBANTRIN® is only effective against adult worms, which means any eggs or immature worms inside the body might still linger after the initial treatment. In order to minimise the risk of reinfestation, a follow-up treatment two to four weeks later is strongly recommended if symptoms are still present.
Pinworm infection is spread by the fecal-oral route, that is by the transfer of infective pinworm eggs from the anus to someone's mouth, either directly by hand or indirectly through contaminated clothing, bedding, food, or other articles.
Threadworms do not go away by themselves, and people do not build up immunity to them, so they must be treated in order to eradicate them totally from the body.
Because pinworms lay their eggs at night, washing the anal area in the morning can help reduce the number of pinworm eggs on your body. Showering may help avoid possible re-contamination in bath water. Change underwear and bedding daily. This helps remove eggs.
Wash all sheets, bed linen, pyjamas and sleepwear in hot water to kill any pinworm eggs. Clean toilet seats and potties regularly with disinfectant (remember to store the disinfectant out of reach of children). All family members should take the medication, regardless of whether they are experiencing symptoms.
Should I keep my child home from school? You usually don't need to keep your child home if they have a threadworm infection.
Mebendazole acts by stopping the threadworms from absorbing vital nutrients such as sugars while they are in the gut, which leads to the starvation and death of the worms within a few days. Piperazine acts by paralyzing the worms which are then passed out of the body in the stool.
Female threadworms lay an average of 11,000 tiny eggs, which are invisible to the naked eye. She lays these eggs outside the anus, or, in girls, around the vagina and urethra. Eggs are usually laid at night whilst the child sleeps.
If the skin is irritated a dilute mild antiseptic can help. Applying Vaseline to the skin after cleaning can help protect the skin and prevent the eggs sticking.
Scratching the anus or vagina, or wiping them after going to the toilet, can cause the eggs to stick to your fingertips or under your fingernails. If you don't wash your hands, the eggs can be transferred to your mouth or on to food or objects, such as toys and kitchen utensils.
This might happen if they put their hands in their mouths or bite their nails after coming into contact with people with worms or with worm-infected dust, toys or bed linen. Once swallowed, the eggs get into children's small intestines, where they hatch and lay more eggs around the anus.
Strict hygiene measures can clear up pinworm infection without medication, and reduce the risk of reinfection. The worm has a lifespan of about six weeks, therefore the strict hygiene needs to last that long.
If left untreated, the intense itching and scratching associated with these infections will result in secondary bacterial infections. Some of these may be difficult to treat. Untreated people can continue to infect other people.