A sick Muslim is permitted to seek treatment through Islamically lawful Ruqyah, which involves recitation of Ayahs of the Qur'an and invocations reported from the Prophet (peace be upon him). He may also resort to lawful medicines.However,
visiting soothsayers or the like who request the sick to slaughter a she-camel, a sheep, a chicken, or any animal is not permissible. This is because slaughtering is an act of worship that must be dedicated to Allah Alone. Allah (Exalted be He) states,
Say (O Muhammad صلى الله عليه وسلم): "Verily, my Salât (prayer), my sacrifice, my living, and my dying are for Allâh, the Lord of the ‘Alamîn (mankind, jinn and all that exists).
He has no partner.
It is not permissible to eat from this camel's meat even if the Name of Allah is mentioned upon slaughtering, because it was slaughtered for the sake of other than Allah (Glorified and Exalted be He) - an act which is considered major Shirk (associating others with Allah in His Divinity or worship that takes the Muslim out of Islam) that takes the doer out of the pale of Islam. (Part No. 1; Page No. 202) May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.