I took 2 nyquil right before bed and after laying in bed i feel like my stuffy nose is getting worse. i have some dayquil sever cold and flu with nasal decongestant, can i take one or two of those now to help break up the mucus a little or is that too mu

And: Stop all this over the counter. Causes some side effects like increase in bp. Now try very hot fluids to open up the sinus rest give this a few days if you get worse see your doctor. Takes several weeks to resolve. Most often viral.

Taking Both: could overdose you on Tylenol (Acetaminophen). Instead, buy some sterile saline drops at the drug store and use them to break up the mucous. Hope this helps!