I Have The Flu, Part Of Which Is A Sore

I have the flu, part of which is a sore throat. I wake up coughing violently because of prickles in my throat. I use a throat lozenge, which lasts a short while, and then it starts again. I have no other medications at home and it's the middle of the night here. What home remedy can I use to numb my throat and get a good night's sleep? Thank you.