I have a cold too, and have found great relief in a lemon water. Cut off skin of whole lemon, slice, put into jug, pour hot water onto lemon, then fill with cold water. Slowly sip. Yummy. (My mum would add a bit of honey too!)
I've been mildly using the Fess nasal spray before bed to clear my nose and enable some sleep. If I get a headache I use paracetomol, but not often....