Are colds contagious after symptoms are showing?

Yes, colds are contagious after you have symptoms.

As a matter of fact, once you have nasal symptoms (drizzling/sneezing), you are more contagious, not less. This is why people should use their elbow to cover their sneezes & coughs.

My boyfriend had a really awful horrible cold a few weeks ago and his doctor told him that the day he woke up starting to feel better, around then he would start to not be contagious anymore. Who knows. Luckily my body is that of a greek god, I never did get sick. And he sneezed all over EVERYTHING for a week and a half. eww.

Yes. You are contagious if you’re showing symptoms.

Where the hell did this stupid urban legend come from? I mean, I used to assume anyone showing symptoms was contagious, then heard from numerous places over the years that that wasn’t true. Stupid.

Yes

Yes. A person is contagious from the incubation period until symptoms clear up.