You have to hammer it and don't let up until it's gone.
1500mg vitamin C, 4x /day
Cold-eeze style Zinc lozenges 8x /day
Stay hydrated. Lots of water.
Avoid dairy products ... they have the tendency to thicken mucus secretions.
Re-contamination and re-infection is huge ...
Make four complete changes of your bedsheets ... stuff each set into one of the pillow cases. Use these for fast and easy bed changes.
Completely change your bed linens every other day. If you want to re-use the blankets without laundering them and just change the sheets/pillowcases, put the blankets in the clothes dryer on high for an hour.
At time of decontamination, spray house with Lysol spray ... door knobs, all keyboards and clickers, phones, etc ... sinks ... all common surfaces, mattress pads, as many contact surfaces as you can imagine might harbor the virus.
ONLY use disposable tissues, kleenex, bathroom tissue, papertowels, whathaveyou, to blow your nose. Don't re-use any sort of "handkerchief" cloth etc.
Decontaminate your toothbrush after use ... either Listerine type mouthwash or Hydrogen Peroxide. Also use either or both as a regular mouth-rinse/gargle a couple times a day. (for gargling, the hydrogen peroxide is used 1:1 with water ... roughly tablespoon peroxide and tablespoon water etc)
fwiw, that regimen of Vitamin C and the lozenge style zinc tablets *really* works incredibly well if you hammer it at the first sign of illness.
Three weeks ago I cut a (rhinovirus) cold, that started as a vicious sore throat down to 3 active days with the above actions. That's probably less than half the normal active duration for me.