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Why It Causes Drooling:
Mouth breathing dries the throat but can also overstimulate saliva glands. Combined with poor swallowing during sleep, this leads to drooling.
Other Symptoms:
Stuffy or runny nose
Postnasal drip
Frequent sneezing or sinus pressure
Dry throat in the morning
What to Do:
Treat allergies with antihistamines or nasal corticosteroids. For chronic sinus problems, see an ENT (ear, nose, and throat) specialist. Clearing your airways can stop the drool — and improve your sleep.
5. Medication Side Effects – The Hidden Culprit
What It Is:
Certain medications can increase saliva production as an unintended side effect.
Common Offenders:
Antipsychotics (e.g., clozapine)6. Dental or Oral Health Issues – It Starts in the Mouth
What They Are:
Misaligned teeth, ill-fitting dentures, gum disease, or oral infections can interfere with your bite and swallowing mechanics.×
Why They Cause Drooling:
Pain, discomfort, or misalignment can make it harder to close your mouth fully or swallow properly, especially when relaxed during sleep.
Other Symptoms:
Tooth or gum pain
Bad breath (halitosis)
Swollen or bleeding gums
Difficulty chewing
What to Do:
Schedule a dental checkup. Regular cleanings, proper oral hygiene, and correcting dental issues can make a surprising difference — even in how you sleep.
When to See a Doctor
Occasional drooling? Normal.
But see a healthcare provider if you have:×
