What natural remedies are there for hand foot and mouth disease? Has anyone tried coconut oil or tumeric for sores?

Not too sure about benefits of turmeric on HFMD but when I was young, my late grandma would use turmeric paste on small cuts and wounds because she said it helps "the skin close up faster". Upon research, I read that curcumin, the therapeutic component of turmeric shows anti-inflammatory, anti-bacterial and anti-viral properties which helps in fast healing and prevention of scars. Perhaps you could try it after the HFMD has subsided so that the sores do not leave behind scars?