QUR'AN, MEDICINE FOR ALL DISEASES
Ibnul Qayyim Rahimahullah said,
"The Qur'an is the perfect remedy for all ailments of the heart and body, as well as for the ailments of the world and the hereafter.
If someone who is sick continues to be treated with it and puts (this medicine) on his illness with full honesty and faith, perfect acceptance, firm belief, and perfecting the conditions, surely any disease will not be able to deal with it forever.
How can disease be able to face the words of the One who owns the heavens and the earth; which, if sent down upon a mountain, would destroy it?
So, there is not a single disease, whether heart disease or physical disease, except that in the Qur'an there is a way that leads to medicine and its cause (healing).
(Zadul Ma'ad, 4/287)