Strongly disagree. For many people a cold with congestion turns into a sinus infection if not treated with decongestants. Then you actually do need the antibiotics!
It's dangerous to assume that just because the "cold medicine" doesn't attack the virus that it doesn't work.
> many people a cold with congestion turns into a sinus infection if not treated with decongestants. Then you actually do need the antibiotics!
This isn't strictly true either. An otherwise healthy person's body will take care of most sinus infections[1] itself given a little time and care. When it turns into something longer-term, that's when antibiotics may come into play.
It's dangerous to assume that just because the "cold medicine" doesn't attack the virus that it doesn't work.