Whats the best way to get rid of a common cold fast?

ok so what i have is like a dry throat(the one where when you swallow, it feels kinda scratchy) and I my nose is really congested. like when after you blow your nose, it clears up a bit, but comes back quick, and you cant smell or taste anything. Can anyone out there tell me the fastest and easiest way to get rid of this cold? please help ASAP! thanks!