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How can chronic worm infestation in the stools be treated?

This Premium Q&A, reviewed and published, features a real conversation between an iCliniq user and a physician.

Patient's Query

Hi doctor,

I have had worms in my stool for the past six months. This causes itchiness. Now the situation is extreme. I have taken Vermox for three days, 100 mg two times a day. But not more than a day after treatment. I have taken Zental 400 mg twice a day for three days, but there have been no significant effects. Still, I am seeing small white worms and large black and red worms. Kindly instruct me on a medicine to overcome this situation.

I have also taken Vermox 500 mg, but I am still seeing worms daily and itching anus. I have been experiencing irritability, restlessness, lesions on the skin, fatigue, and lethargy. Kindly recommend a treatment to fully overcome this painful situation. My weight is normal, and my CBC is also normal, but my skin color is gradually darker. I have often had GIT problems, abdominal bloating, diarrhea, and vomiting.

Thanks.

Hi,

Welcome to icliniq.com.

I can understand your concern.

Persistent intestinal worm infections despite multiple treatments with Albendazole (Zentel) and Mebendazole (Vermox) suggest either incomplete eradication, reinfection, or possible mixed parasitic infestation. It is important to first confirm the exact type of worm through a stool examination (ova and parasite test) so that targeted treatment can be given, as different worms require different medications and durations. In cases of heavy or mixed infections, treatment may need to be repeated after two to three weeks and extended for several days, sometimes in combination with Ivermectin or Niclosamide, depending on the parasite identified.

Strict hygiene measures are essential to prevent reinfection: wash hands frequently with soap and water, especially after using the toilet and before eating; keep fingernails short and clean; wash underwear, bedsheets, and towels daily in hot water; bathe every morning to remove eggs from the skin; and avoid walking barefoot on soil. All household members should be treated at the same time if pinworms or similar contagious worms are suspected.

Persistent symptoms like skin rashes, itching, fatigue, and gastrointestinal upset also require ruling out other causes, such as allergies, secondary bacterial infection from scratching, or nutritional deficiencies. Please visit a doctor with your stool test results so an appropriate, longer-duration, or combination therapy can be prescribed safely and effectively.

I hope this information will help you.

Medically reviewed byiCliniq medical review team

Published At October 19, 2025
Reviewed AtOctober 22, 2025

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