tip for the flu or cold: because they (viruses) get into your sinuses, and start to multiply there, not in the mouth or stomach, then would be good to put something in the sinuses to kill them. This needs to be done at the first sneeze! when there aren't yet billions of them. netipot, with cleaned water + salt is the way used for thousands of years. What is extra is to put pea size amount of cold pressed/virgin coconut oil in there (when water about 30c degrees, but not hotter) and flush with it. antiviral and antibacterial, gives nice coating also to sensitive skin inside sinuses. you'll skip the whole perioid of getting sick. works. trust me