Is it permissible to bathe with rosewater on Mondays and Fridays for three weeks, then dispose of this water in the four corners of the room, as a cure for fatigue, trembling, and fear when leading prayers?

If Qur'anic verses or legitimate ruqyah (definition) are recited over water, it should not be discarded; rather, it should be drunk or used for washing. This is what has been narrated from the Salaf. However, if nothing has been recited over it, and there is nothing in it that contradicts the Shari'ah, and it is a proven ruqyah or treatment, then there is no objection to it, based on the Prophet's (peace be upon him) saying: "There is no harm in ruqyah as long as it does not involve shirk (definition)."