When to Use Ivermectin 12mg for Parasites depends on the type and severity of the infection, as this medicine is commonly prescribed to treat conditions caused by intestinal worms and skin parasites. It works by paralyzing and killing the parasites, helping the body clear the infection effectively. Doctors usually recommend it when symptoms like itching, rashes, or digestive issues appear, but proper diagnosis and medical guidance are important to ensure safe and effective treatment.