I could have written the first 8 replies. I use all those methods at the first suspicion of a cold, and most of the time, I win. I keep spray ZiCam and Ocean nasal drops on my night stand. I use the Ocean drops every night before bed and use the ZiCam only if I feel a sore throat or sniffles coming on. Vitamin C (fresh oranges or lemons) is always a good idea, since our bodies don't make or store it. Water is necessary to wash away toxins, excess fat and sugar. Salt water is good.... in a nettie pot to cleanse your sinuses, and it's also good for cuts. It kills germs before they cause infections.