Those three experts must have been paid by the Vick’s company to push their product.
I have great success with Cold-eze. What might be a big 5 day cold turns into a mild 2 day cold. You must take it as soon as you feel the cold coming on. I keep one lozenge in my purse.
ZICAM Nasal spray as soon as I feel a cold coming on. Keep taking it until symptoms cease. I have also used Cold Ease.
These are both zinc based remedies. The key is to get as much zinc into your body as you can the first 24 hours when you are initially becoming infected.
I have found IF I follow this procedure the cold is completely gone in a few days or less. Sometimes literally one day. I never have a day where I am incapacitated.