Allday5000 toothpaste tube with water droplets and 'Oral Health Tips' text on a blue background

Help for Dry Mouth Starts Here

Dry mouth can have many underlying causes. Common contributors include hundreds of prescriptions and over-the-counter medications, cancer therapies, autoimmune conditions, and mouth breathing during sleep. Regardless of the cause, reduced saliva can make it difficult to maintain good oral health.

Common Causes

Woman holding a glass of water and touching her face in discomfort, possibly experiencing toothache or dry mouth.

Medications That Cause Dry Mouth

Many prescription and over-the-counter medications can reduce saliva production and lead to dry mouth symptoms. Common culprits include antihistamines, antidepressants, blood pressure medications, decongestants, and sleep aids.

If your symptoms began after starting a new medication, speak with your healthcare provider or dentist about possible alternatives or ways to manage dryness.

Medical Conditions Linked to Dry Mouth

Certain health conditions may affect saliva production and contribute to chronic dry mouth. These may include diabetes, Sjögren’s syndrome, autoimmune disorders, and conditions that affect the salivary glands. Persistent dry mouth should be evaluated by a healthcare professional to identify underlying causes.

Cancer Treatments and Dry Mouth

Radiation therapy and some chemotherapy treatments can damage salivary glands and significantly reduce saliva flow. This treatment-related dry mouth, also called xerostomia, may increase the risk of cavities, oral irritation, and difficulty eating or speaking.

Tobacco, Alcohol, and Caffeine Use

Smoking, vaping, alcohol, and excessive caffeine intake can all contribute to oral dryness. These substances may irritate oral tissues and decrease saliva production, making symptoms worse over time.

Mouth Breathing and Snoring

Breathing through your mouth while sleeping can dry out oral tissues and reduce moisture overnight. This is especially common in people who snore, have allergies, nasal congestion, or sleep apnea. Morning dry mouth is often linked to nighttime mouth breathing.

Dehydration and Not Drinking Enough Water

Dehydration is one of the most common causes of dry mouth. When your body lacks enough fluids, it may produce less saliva, leaving your mouth feeling sticky, dry, or uncomfortable. Dehydration can result from exercise, hot weather, illness, alcohol consumption, or simply not drinking enough water throughout the day.

Common Symptoms

Persistent, bad breath
Outline of a person with a distressed expression clutching throat in pain
A sore, dry throat

Often accompanied with difficulty speaking

Green icon of a tooth with a focus on dental health, bacteria and cleanliness.
Oral Infections
Dry, cracked lips

Or irritation at the corners of the mouth

Impaired taste
3 people brushing their teeth from 3 generations

Dry mouth not only causes significant discomfort; it also greatly increases the risk of tooth decay. Consistent brushing and flossing are essential when saliva flow is reduced, although these habits alone may not be enough to fully protect against cavities.

What Can You Do?

  • Green icon of a gum or candy package with a mint symbol on a transparent background

    Choosing xylitol-sweetened mints or gum

    Xylitol helps stimulate natural saliva production, keeping the mouth hydrated, comfortable, and better protected against dryness.

    Unlike products made with harsh chemicals, detergents, or added sugars, xylitol moisturizes the mouth gently without irritating oral tissues or worsening dry mouth symptoms.

  • Green icon of a water bottle with a drop on a transparent background

    Drinking water regularly

    When the body is dehydrated, saliva production can decrease, leading to dryness, discomfort, bad breath, and difficulty speaking or swallowing.


    Sipping water regularly helps maintain moisture in the mouth and provides temporary relief from dry mouth symptoms.

  • Green icon of a nose on a transparent background

    Breathing through your nose whenever possible

    Mouth breathing increases airflow across the tongue, gums, and soft tissues, which can dry out saliva and leave the mouth feeling uncomfortable.


    Nasal breathing helps maintain natural moisture levels, supports healthy saliva production, and may reduce irritation, bad breath, and the risk of cavities associated with chronic dry mouth.

  • Green icon of a humidifier on a transparent background

    Using a vaporizer or humidifier to add moisture to the air

    Dry indoor air can increase evaporation of saliva and irritate oral tissues, worsening dry mouth symptoms.

    Adding humidity helps maintain moisture in the oral environment, supports comfort overnight, and may reduce symptoms like sore throat, bad breath, and waking up with a dry or sticky mouth.

We can help...

The patented innovation in Allday products contains 44% xylitol and a unique combination of moisturizers. Making Allday part of your daily routine will not only help you feel more comfortable, but it will also help improve your oral health.

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