Forcing a yawn opens the tensor veli palatini muscle—the muscle that actually pulls the Eustachian tube open. Immediately follow the yawn with a hard swallow. This is more effective than the Valsalva maneuver for viral clogs.
Use a saline spray to thin the mucus in the nose. Then, close your mouth, pinch your nose, and try to sniff gently as if you are smelling a flower. This pulls the thin mucus out of the tube rather than pushing germs in.
Disclaimer: This post is for informational purposes only and does not constitute medical advice. Always consult with a qualified healthcare professional for diagnosis and treatment of any medical condition.