How do I relieve ear congestion?

I had an ear infection that’s cleared up with antiobiotics. Unfortunately, after flying on an airplane yesterday, my ear is completely clogged. I can’t hear out of it, and it’s driving me nuts.

Normally I’d seen an ENT for an extraction, but I’m not at home and everywhere is closed or booked this week for Thanksgiving. I know it’s just mucous in there. Anyone have any suggestions for how to clear it up?