I've been dealing with this nonstop coughing for the last three days because of a cold, and it's honestly so annoying. It's making it really hard to sleep, and it happens every time I get sick. I struggle to cough up the mucus; it's like I'm trying, but nothing comes out. I've already tried different cough syrups and antibiotics, but nothing seems to work. What do you think is going on, and what else can I try?