[Detrus]

Yes and certain foods can also be used to reduce symptoms, but of course they're not as powerful. Did that option fail for you?

The case I see more often is people get obvious cold symptoms and are back at work the next day. Thanks to symptom reducers they don't have to rest or eat properly for the condition, so their light symptoms persist for weeks. That also leads to complications.

Also I should have mentioned that most adults are not healthy and don't eat healthy to begin with, which creates a ripe market for band aid medications.

[mfringel]

So, you've backed off your original point of not doing anything to reduce symptoms at all?

[Detrus]

My original point was taking medications to suppress symptoms. For example they'll open your sinuses in 5 minutes and keep them open for hours.

Typically food will reduce symptoms by stimulating the immune system to work faster. Attempts at immediate relief will be short lived. That's how people traditionally treated disease. It's still a valid approach for light ailments where modern medicine can be a harmful crutch.