E.C.
My daughter is 2 and has many colds this past year as she has 2 older sisters in school.
For her, it usually starts with a runny nose, sometimes with a fever. Then the coughing comes a day or two later. At night, we notice she coughs more and is generally achy, but a dose of Tylenol takes care of that easily.
Colds usually last 4 (ish) days. I'm a big believer in letting things run their course and only give medications when really needed.