The demon of the day is named Sehaqeq.

Ostracon 5152 Leipzig, Ägyptisches Museum Georg Steindorff. Image from Lucarelli, Rita. (2010). Demons (benevolent and malevolent). UCLA: Department of Near Eastern Languages and Cultures. Retrieved from:

Sehaqeq (sometimes called Sehakek) was a demon that was believed to be the cause of headaches. He is depicted here in anthropomorphic form as a young male covering his face with his arm. We even know a little about his ancestry as his parents are named in some magical texts.