Parasitic worm infections, also known as helminth infections, can cause symptoms like abdominal pain, diarrhea, fatigue, and weight loss. Effective treatment usually involves antiparasitic medications that eliminate the worms from the body. Doctors may prescribe Nitazoxanide, commonly available as nizonide 500mg, which helps stop the growth of parasites and clears the infection. It is important to take the medicine exactly as prescribed and complete the full course. Maintaining good hygiene, washing hands regularly, and consuming clean food and water also help prevent reinfection. In some cases, follow-up tests may be required to ensure the parasites have been completely removed.