I use SueK's Vicks remedy, although I haven't tried it on the soles of my feet. If your nose is blocked, inhaling Vicks dissolved in hot water is wonderful. The only other thing I sometimes do, is drink cider vinegar with honey, dissolved in hot water. Cider vinegar is supposed to have all sorts of amazing properties. If you are starting to get a sore throat, drinking cider vinegar or gargling with it (diluted) will sometimes stop it in it's tracks.
Big hugs Chrissy, hope you feel better soon