How can one get rid of the devil's whisperings (waswasah) that push a person to repeat certain movements and words, and to avoid touching certain things out of fear of them?

To treat whispers (waswas), one must fortify oneself by remembering Allah, reciting the two surahs of seeking refuge (Al-Mu'awwidhatayn), Ayatul Kursi, and other remembrances (adhkar). One should also use legitimate ruqyah from the Quran and Sunnah, while being wary of charlatans and sorcerers. Furthermore, one must increase in acts of obedience and distance oneself from prohibited acts, especially major sins, and make abundant supplications for deliverance from evil. The matter may also necessitate consulting a specialized doctor.