I’ve been trying all the tricks I can find including that one. Been breathing in steam from a bowl with a towel other my head, using a various forms of heat on my ears and face. Taking the good cold medicine that they keep behind the counter at the pharmacy plus Flonase, and antihistamines. Went through a week of antibiotics just in case. I started wearing a mask at work and outside in case it is allergies. I have one side that is getting unblocked finally, which was the first side to get blocked.