Dr. Zachary Rubin

Keep in mind though, that you should never use tap water unless it was previously boiled and cooled.

It's just easier to get distilled water in a jug to use because there is a rare

but actual complication that is reported pretty much every year, very rare, but pretty much universally fatal, which is the brain-eating amoeba called Niclaria fowleri, you could get infected with that with tap water.

If people use nasal sprays, they often don't know how to use it correctly.

I tell folks, if you're snorting it and taking a deep breath in when you use it, you're likely going to taste the medication.

But if you're tasting it, that means you're wasting it.

It's not going in the right part of your body.

When I teach my patients or when I talk about online, the light bulb goes on and people don't realize that they weren't taking it properly.

When they do it, it makes a huge difference.