My son also has one side that he likes to sleep on. When he's fast asleep, we turn his head and use pillow to support so he dont turn over. We also shave his head and his hair grow in unequal speed. Maybe that patch has slower growing hair? Is it totally bald or just shorter hair?
I paste, cut, staple and sew when I'm pregnant and nothing happened. Superstitions are after all, only superstitions -.-" I dont't follow any of those rules at all except when the elders are glaring at me. Haha. Sometimes my mom close one eye and just let me do.