OK. OK. I know that was a cheap shot but this is a really important subject and I really need to get your attention. Sorry about that.
Mucus often gets a bad rap. The only time we pay attention to mucus is when we have hay fever or a nasty leaky cold and at that point it seems like the attack of the glob. You just want it to go away.
If, in fact, your wish were to be granted by the cold-medicine fairy and snot did go away completely, I doubt that you would be around for your next birthday. You are pretty much lined with this glistening magical traveling stuff that keeps your delicate vulnerable inner tissues moist, clean, and warm.
The trick is to keep the mucus moist enough so it moves along easily but gelatinous enough to trap the bits of junk and microscopic critters that would otherwise dig dangerously deep into your vulnerable lungs and possibly kill you. Be judicious about cold and sinus medications that could dry out your bronchial passages. Stay hydrated. Wear a dust mask when you are exposed to airborne irritants that can overrun the mucus blanket. Treasure this super barrier.
Be well. Breathe beautifully.