Cold water as a Quranic cure for diseases
9-4-2008 | IslamWeb
Question:
Salamualaikum Wa Rahmatullah I hope i will get answer for this question very quickly. my question is my elder brother told me that Almighty Allah said in quran that cold water is cureness for diseases.Is it correct? my brother heard this from someone & he also didnt gave any reference & just said that it is in quran. and i want to know about this Insha Allah please do reply quickly with reference from quran if it is there & if possible please send me complete about this thing Insha Allah. Jazak Allah Khair
Answer:
All perfect praise be to Allaah, The Lord of the Worlds. I testify that there is none worthy of worship except Allaah, and that Muhammad, sallallaahu ‘alayhi wa sallam, is His slave and Messenger.
There is no verse in the Quran that states that cold water is a cure, as your brother claimed. However, it might be that he refers to what is mentioned in the Quran about the Prophet Ayoob (Job) 
as Allaah ordered him saying (what means): {[So he was told], ‘Strike [the ground] with your foot; this is a [spring for a] cool bath and drink.”}[Quran 38:42] Hence, he stroke the ground with his foot and a spring of cool fresh water sprung, and he drank from it and had a bath. Thereupon, he was cured from every inward and outward disease, as mentioned by the interpreters of the Quran. This is a mercy from Allaah to his slave Ayoob, as Allaah Says (what means): {...as mercy from Us}[Quran 38:43]
However, this does not mean that every kind of cool water is a cure. On the contrary, a healthy person may drink cool water and get sick.