What would show on an EtG test would the ethanol be below .04 and suggest that it was an over the counter medication

It will show you were drinking. Too soon

If it's an etg test, 12 hours later, you have no chance of passing.

^ Agreed that 6 beers 12 hours prior you will test positive for ETG and no, not from NyQuil.

If you are subject to random court ordered testing... read the fine print. It doesn't matter WHAT to product was. There are non-alcohol formulations of everything out there. The Nyquil excuse doesn't fly.

After just 12 hours, you will likely test positive for both alcohol and ETG.

suggest that it was an over the counter medication

You aren't asking us to recommend an OTC that would cause a positive, are you? If you are, we aren't going to do that.