Oral Health Blog

Animated couple at a café wonders if canker sores are contagious - and if so are they contagious through kissing?.

Canker Sores and Kissing: The Contagious Truth

Dr. Harold Katz – Bad Breath Expert

Are canker sores contagious? Learn whether you can kiss someone with a canker sore, how they differ from cold sores, and gentle ways to soothe irritation.

Canker Sores and Kissing: The Contagious Truth

Dr. Harold Katz – Bad Breath Expert

Are canker sores contagious? Learn whether you can kiss someone with a canker sore, how they differ from cold sores, and gentle ways to soothe irritation.

Woman holding a glass of red wine while thinking, illustrating questions about alcohol and canker sores

Can Alcohol Cause Canker Sores?

Dr. Harold Katz – Bad Breath Expert

Wondering whether alcohol can trigger canker sores? Learn how drinking affects folic acid levels, saliva production, and mouth dryness—and what you can do to prevent irritation and support healthier oral...

Can Alcohol Cause Canker Sores?

Dr. Harold Katz – Bad Breath Expert

Wondering whether alcohol can trigger canker sores? Learn how drinking affects folic acid levels, saliva production, and mouth dryness—and what you can do to prevent irritation and support healthier oral...

Alcohol and Bad Breath

Alcohol and Bad Breath

Dr. Harold Katz – Bad Breath Expert

Alcohol can dry out your mouth and feed odor-causing bacteria, leading to stubborn bad breath. Learn why this happens and how simple steps—like staying hydrated and using alcohol-free mouthwash—can help...

Alcohol and Bad Breath

Dr. Harold Katz – Bad Breath Expert

Alcohol can dry out your mouth and feed odor-causing bacteria, leading to stubborn bad breath. Learn why this happens and how simple steps—like staying hydrated and using alcohol-free mouthwash—can help...

Can Anxiety Cause Dry Mouth and Bad Breath?

Can Anxiety Cause Dry Mouth and Bad Breath?

Dr. Harold Katz – Bad Breath Expert

Have you ever noticed that when you are stressed out or feel anxious that your mouth is dry and uncomfortable? Well, that's no coincidence! Anxiety dry mouth is a real...

Can Anxiety Cause Dry Mouth and Bad Breath?

Dr. Harold Katz – Bad Breath Expert

Have you ever noticed that when you are stressed out or feel anxious that your mouth is dry and uncomfortable? Well, that's no coincidence! Anxiety dry mouth is a real...

Woman reacting to partner’s bad breath while lying in bed together under a blue blanket

How to Tell If Your Breath Stinks

Dr. Harold Katz – Bad Breath Expert

Not sure if your breath smells? Learn why it’s hard to smell your own breath, simple at-home tests to check it, and easy ways to keep your breath fresh and...

How to Tell If Your Breath Stinks

Dr. Harold Katz – Bad Breath Expert

Not sure if your breath smells? Learn why it’s hard to smell your own breath, simple at-home tests to check it, and easy ways to keep your breath fresh and...

Secrets of Teeth Whitening at Home

Secrets of Teeth Whitening at Home

Dr. Harold Katz – Bad Breath Expert

Dr. Katz began practicing dentistry in 1975, having just graduated with a DDS degree from UCLA and eager to make his mark as a dentist. He worked a double shift...

Secrets of Teeth Whitening at Home

Dr. Harold Katz – Bad Breath Expert

Dr. Katz began practicing dentistry in 1975, having just graduated with a DDS degree from UCLA and eager to make his mark as a dentist. He worked a double shift...