The best way to expel roundworms in adults are medication and surgery. 1. Drug treatment: commonly used drugs include antispasmodic and analgesic drugs, anthelmintic drugs, antibiotics and so on. (1) Antispasmodic and analgesic drugs: such as atropine, scopolamine, etc., used to relieve the patient’s pain. (2) Anthelmintics: such as albendazole, ivermectin, etc., used to expel roundworms and prevent them from causing further damage to the body. (3) Antibiotics: such as ceftazidime, levofloxacin and other drugs, which can prevent or control intestinal infections. 2. Surgical treatment: commonly used surgical procedures include intestinal obstruction relief and perforation repair, etc., which are suitable for patients with Ascaris lumbricoides intestinal obstruction and intestinal perforation. If you are diagnosed with roundworm infection, it is recommended to consult a doctor in time and take active treatment.