Some people pour water up their nose. I saw someone doing it in the military. Said it felt great. I wasn’t convinced.
I am genetically blessed with a chronic form of histamine allergies that keep my sinuses blocked. On bad days, I have to heat water, then let it cool, and then add a specific salt then use a medical pump to pump them all the way through my nostrils until they reach the back of my throat to make sure the canals are open. Doctor’s orders and all. I assure you, we are not doing this for fun.