What is contact (with the jinn), what is its cure, and does the cure include all its cases?

The treatment for jinn possession (mass) is through the Qur'an and authentic supplications (adhkar), or by seeking help from upright reciters (ruqat) who adhere to the Sunnah. The Qur'an is a healing for ailments of the heart and body, and for the ills of this world and the Hereafter. Ibn al-Qayyim states that the effectiveness of ruqyah depends on the strength of the reciter's faith and conviction, and their distance from sins. The stronger the faith, the greater the effect, by Allah's permission.