I already showed you in my previous article, how to prevent water getting up your nose while going underwater, floating, or swimming on your stomach.
This is, however, just one part of the "nose plugging" story.
If you don’t know the rest, I’m afraid that for some swim positions, nose clips or plugs may be your only rescue tool to keep the water out.
You already know how to plug your nose using the soft palate technique while swimming freestyle or while sinking underwater. But what happens when you find yourself underwater on your back?
Maybe it’s during a flip turn, a streamline push-off, or simply when you look up toward the ceiling underwater.
You’ve probably noticed that the soft palate trick no longer works.
Why? Because air buoyancy and pressure differences cause the air in your lungs to escape through your nose, and water will gladly take its place.
To fix that, you need a different approach: one that deals with air escaping out and water coming in.
The first and best human nose clip technique uses your upper lip to physically plug your nostrils.
Yes, that’s right, your face becomes your own nose clip.

But before you start curling your lip, there’s a trick to making it work. Your upper lip cannot move up by itself, it needs help from your lower jaw.
If it looks like you’re trying to kiss your nose, start over. Your lips should point forward, not upward.
Check the images below for reference (it ain’t pretty, but it works).

When you master this "human nose clip," you’ll be able to float or lie on your back underwater with no air escaping and no water coming in.
If you can’t quite make your lip reach your nose, don’t despair. Keep practicing this grimace in the mirror.
It gets easier, I promise.
⚠️ A few notes:
You’ll be happy to hear that this next one doesn’t involve any lip gymnastics.
The "Fill the Nose" technique simply uses water pressure to block your nasal passage.
Here’s how it works:
While underwater, gently suck a small amount of water into your nose.
That bit of water acts as a seal, equalizing pressure so no more water gets in and no air escapes.
It’s simple but, let’s be honest, not very comfortable.
You might end up with a slightly runny nose for a few hours after practice.
And yes, you’ll look extra charming on a post-swim date. 😆
Still, many experienced swimmers use this technique effectively, especially when doing underwater streamlines or flips.
If neither the human nose clip nor the fill-the-nose approach works for you, it’s perfectly fine to use an actual nose clip.
In fact, top swimmers use them regularly in training and competition, especially in backstroke and underwater dolphin kick sets.
Here are two popular, comfortable options:
So no, using a nose clip isn’t cheating, it’s just another swimming tool.
There’s more than one way to stop water from invading your nose underwater.
To recap:
The goal is to be comfortable and confident underwater, whichever method gets you there.
The human nose clip technique uses your upper lip, assisted by your lower jaw, to press against your nostrils and prevent air or water from entering. It’s useful when underwater on your back.
Because of buoyancy and pressure differences, air escapes from your nose more easily when on your back. The soft palate technique isn’t enough to keep water out in that position.
The fill the nose technique involves sucking a small amount of water into your nose to equalize pressure and prevent further water from entering. It’s not very comfortable but can work for some swimmers.
If your lip or jaw shape doesn’t allow you to seal your nostrils, or if you have facial hair in the way, you might need to shave or try another method such as using a physical nose clip.
Absolutely not. Nose clips are used by competitive swimmers and can be a great tool if the other techniques don’t work for you. They’re especially helpful in backstroke or underwater streamline positions.