Cold Cures

I have a cold. The second in a month. Conventional, over-the-counter cold cures tend to be packed with sugar and sweeteners. I've been attempting to self-medicate with chillies, garlic and onion and lemon and honey. And, of course, plenty of rest. I've also been trying hot baths and inhaling steam to alleviate the sinus pressure. Apparently raising your temperature helps your body to fight back against the cold virus too. However, I have to attend a day long seminar tomorrow (organised by me, so it's going to be a busy and stressful day), followed by a Christmas 'do.' I am close to caving in and making myself a Lemsip. Before I do, does anyone have any tried and tested candida-friendly cold cures?