Ah but the rub can be even more intense than the inhaler :D
Take a towel, rub a thick layer the size of your mouth + nose on one side, pull the other side tight across your mouth and nose and inhale through the towel while sitting down with your head tilted back. That will give even more of a rush than an inhaler, try it!
To the OP: it provides some kind of rush that feels absolutely amazing. Inhale the vicks as slow and as deep as you can, either from an inhaler or with the towel method I described above. Can't really explain how it feels, you'll have to see for yourself, but it kinda feels like you're adding another drug for a few seconds. Key is inhaling very slowly, for a long time and as deep as you can