Most remedies do nothing, they hide or mask symptoms, which isn't a bad thing, who wants to feel bad. Some ibuprofen/paracetomal will help lower a fever and help with aches/pains though that would be more with a flu.
TO beat a cold, flu, you need to help your immune system, a big badass B-complex vitamin, a little vit-c, a zinc tablet, a multivit or some decent food, some omega 3's.
Feed your immune system, it has to produce MORE white cells and targeted virus killing crap than normal, so give your body the building blocks it needs to make those things quicker rather than waste energy and time sythesizing them before it can start building more white cell's.