There's no cure for a cold and so you cannot cure a cold overnight.
However you can help ease the symptoms of the cold by taking some over the counter cold and flu medicine, take some aspirin or take some NyQuil which will help you sleep when you have a cold.
Also drink plenty of water and other hydrating fluids and get plenty of rest.
Other than that there's not much else you can do but wait it out.
Most cold viruses clear up on their own within a few weeks at most.
if the cold gets worse or does not go away within a few weeks then you should see a doctor because it may be turning into pneumonia.
However a regular cold virus goes away on it's own within 7 days to 14 days.
The more rest you get the faster you'll recover and also increase your Vitamin D and Vitamin C intake too as that helps boost your immune system.
If you're congested then eating some spicy foods such as spicy soup, noodles etc or eating some Jalapeno Peppers in some food can help clear up the congestion.