Very interesting and worth trying, but seems almost impossible to resist the temptation to blow. It would be like not scratching a severe itch — smart but impossible to do.
If you resist the itch, the nose doesn’t run. If you sneeze or blow your nose, don’t panic, as the nose will run a little. You get Kleenex and blot it, and take a decongestant like Sudafed etc. The nose dries up.
In most cases, you may suffer a few hours, maybe one day, but the cold usually leaves within 48 hours.
One thing for sure, if you start blowing your nose, what should have last a day or two, is going to be one to two week affair, and a sinusitis that will require antibiotics etc. Off work etc.
Don’t take my word for it, Folks, try it.