The common cold is not curable because it is caused by over 160 different serotypes of viruses, primarily rhinoviruses.

“no unfortunately today I cannot tell you the cure for the common cold because indeed there isn't one one interesting question however is why don't we have a cur for the common cold and the reason is that the cold virus as it's referred to is actually a bunch of different viruses some colds are caused by one what's called serotype of the virus other colds are caused by a different serotype of the virus there are over 160 different types of what people call the cold virus now cold viruses fall under an umbrella of a general category of viruses called Rhino viruses”