I have a friend who always tells me to soak my feet in hot water with parsley in it whenever I have a cold. I have no idea if it works but it's my favorite piece of advice because it's so weeeeeeird like how would that even work PS. hope you feel better soon :)
If you're all mucusy, take a hot shower or get a bowl of boiling water and hold your face over it for ~15 mins. It'll help clear it out. If you've got some teatree or eucalyptus oil around, put a couple of drops (not too much or you'll like burn your eyes) in the bowl. I personally find making a hot drink and stirring some honey into it helps as well. Soothes a sore throat and the steam's nice on your nasal passages. source: I also have a cold rn and had chronic sinusitis for the better part of this/last year. high five, dude. Hope you feel better.
When I have a bad cold I always sleep with a cut in half onion next to my bed. Ut helps, believe it or not. Though it does make me hungry :P