If used by itself, it causes the worm to be passed out in the feces and may be used when worms have caused blockage of the intestine or the biliary duct.Corticosteroids can treat some of the symptoms, such as inflammation. Other medications
Hexylresorcinol effective in single dose. During the 1940s a crystoid form of this compound was the treatment of choice; patients were instructed not to chew the crystoids in order to prevent burns to the mucous membranes. A saline cathartic would be administered several hours later. Santonin, more toxic than hexylresorcinol and often only partly effective. Oil of chenopodium, more toxic than hexylresorcinol

Surgery
In some cases with severe infestation the worms may cause bowel obstruction, requiring emergency surgery. The bowel obstruction may be due to all the worms or twisting of the bowel. During the surgery the worms may be manually removed. Prognosis
It is rare for infections to be life-threatening. Epidemiology
Regions
Ascariasis is common in tropical regions as well as subtropical and regions that lack proper sanitation. It is rare to find traces of the infection in developed or urban regions. Infection estimates
Roughly 0.8–1.3 billion individuals are infected with this intestinal worm, primarily in Africa and Asia. About 120 to 220 million of these cases are symptomatic. Deaths
As of 2010, ascariasis caused about 2,700 directly attributable deaths, down from 3,400 in 1990. The indirectly attributable deaths due to the malnutrition link may be much higher. Research
There are two animal models, the mouse and pig, used in studying Ascaris infection.
A 1986 outbreak of ascariasis in Italy was traced to irresponsible wastewater recycling used to grow Balkan vegetable exports.The number of ova (eggs) in sewage or in crops that were irrigated with raw or partially treated sewage, is a measure of the degree of ascariasis incidence. For example:

In a study published in 1992, municipal wastewater in Riyadh, Saudi Arabia, detected over 100 eggs per litre of wastewater and in Czechoslovakia was as high as 240–1050 eggs per litre. In one field study in Marrakech, Morocco, where raw sewage is used to fertilize crop fields, Ascaris eggs were detected at the rate of 0.18 eggs/kg in potatoes, 0.27 eggs/kg in turnip, 4.63 eggs/kg in mint, 0.7 eggs/kg in carrots, and 1.64 eggs/kg in radish. A similar study in the same area showed that 73% of children working on these farms were infected with helminths, particularly Ascaris, probably as a result of exposure to the raw sewage. Lifecycle
The first appearance of eggs in stools is 60–70 days. In larval ascariasis, symptoms occur 4–16 days after infection. The final symptoms are gastrointestinal discomfort, colic and vomiting, fever, and observation of live worms in stools. Some patients may have pulmonary symptoms or neurological disorders during migration of the larvae. There are generally few or no symptoms. A bolus of worms may obstruct the intestine; migrating larvae may cause pneumonitis and eosinophilia.