There is nothing that drives away the afflictions of this world except Tawheed.
Imaam Ibnul Qayyim (rahimahullaah) said,
“There is nothing that drives away the afflictions of this world except Tawheed.
That is why the supplication of the distressed person is with Tawheed. Such as, the supplication of Yunus (alaihis salaatu was salaam).
The distressed person does not supplicate with what Yunus supplicated with except that Allaah releases him from his hardship because of Tawheed.
There is nothing more gruesome for the distressed person than shirk, and there is nothing that can rescue you from it except Tawheed, it is the refuge for the creation, its shelter, its fortress and its aid.”
(Al-Fawaaid, pg. 96)