Get medication, its cheap, easy and effective.
Dont waste your time, money but most importantly emotional energy with fluffy methods like zappers and herbs. They dont work effectively and can cause migration and scattering.
parasites can become an obsession and when using weak methods can appear like your fighting some invincible enemy.
Just deworm yourself every so many months and stay away from food courts in malls, especially sushi, keep your finger nails short and wash your hands.