With cold & flu season upon us...
Dry Cough, lots of liquids and a humidifier in the room at night.
Sore Throat, gargle with sal****er, suck on SF candy (watch sugar alcohol) which keeps the throat moist.
I also use vicks vapo rub on my chest, some say feet, or put in a vicks type plug in in the bedroom.
Some say for sinuses to use a netti pot. I don't like them myself, but it could be the water I'm using.
Cathy