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Neurological conditions, such as Parkinson’s disease or after a stroke, can interfere with the muscles responsible for swallowing and controlling saliva. This can lead to difficulty swallowing saliva, causing drooling during sleep or while awake.
Conditions to watch for:
- Parkinson’s disease (involuntary muscle movements and difficulty swallowing)
- Stroke (impaired swallowing muscles or coordination)
- Bell’s palsy (facial paralysis affecting saliva control)
4. Allergies and Sinus Infections
Allergic reactions or sinus infections can lead to nasal congestion, which makes breathing through the nose difficult. As a result, people may begin to breathe through their mouths during sleep, increasing the likelihood of drooling.
Symptoms to watch for:
- Nasal congestion
- Post-nasal drip
- Sneezing, runny nose, or itchy eyes
- Sinus pressure
5. Mouth or Throat Infections
Infections in the mouth or throat, such as tonsillitis, strep throat, or even dental issues like abscesses or gum disease, can lead to excess saliva production. This can make swallowing more difficult and lead to drooling while sleeping.
Symptoms to watch for:
- Sore throat
- Pain when swallowing
- Swollen tonsils or lymph nodes
- Foul-tasting saliva
6. Medications
Certain medications, such as antipsychotics, sedatives, or medications used for anxiety or depression, can affect the muscles involved in swallowing or increase saliva production. Some medications can also relax the muscles of the mouth and throat, leading to drooling.
Medications to watch for:
- Antidepressants or antipsychotics
- Benzodiazepines (for anxiety)
- Antihistamines (can cause dry mouth followed by excess saliva)
- Medication for Parkinson’s disease
When to See a Doctor:
If you experience frequent or excessive drooling during sleep, especially if accompanied by other concerning symptoms like difficulty swallowing, choking, or muscle weakness, it’s important to consult a healthcare provider. Early detection and treatment of an underlying condition can help manage or alleviate symptoms.
A healthcare provider can perform tests, such as sleep studies, neurological exams, or scans, to help diagnose the cause of your symptoms.
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