I’ve been sick with a progressively worse cold for days, and I really need to get back to work....

I’ve been sick with a progressively worse cold for days, and I really need to get back to work. Please, if you have any congestion/coughing/sinus pain remedies that work quickly, I could really use them. None of the over the counter medicine I’m using is working, and I can’t see a doctor right now, so I’m hovering over googling my symptoms and coming up with cancer or imminent death, plz stop me