Hadith.1865 - Amir al-Mu'minin عليه السلام disliked that a fasting person perform cupping (hijamah) out of fear that he might faint and thus break his fast.
There is no harm if the fasting person applies kohl containing musk, applies kohl with colocynth, or uses a tooth-stick (siwak) dipped in water or a moist stick that has a taste, at any time during the day.
