Seeking Periodic Sick Care Babysitter In Olney, MD

I am looking to add a babysitter to my rolodex of contacts who is willing to do periodic sick care. I am a single parent without family in town, so when my daughter gets daycare illnesses that prevent her from attending, I am stuck missing work. Rather than stay home and miss work every time she catches an illness, I am hoping to find someone with a flexible schedule who can be called in a pinch to provide sick care at my home.