Poor you. I've suffered from it several times (teacher's usual risk). The worst time was when I was forbidden from speaking at all for a fortnight!!! Just try it ---- actually, seriously, do try it. I had a notebook, but these days you may have a notebook or something you can type on faster than writing.
I'm certain you know all the other stuff, fluids etc.. Don't forget the benefits of good old Vick Vapour Rub. I'm still coughing after 'flu, but it's by the bed and giving me a decent night's sleep. Get weel soon. (Does that mean your OH is now making a figure of me and sticking needles in?)