Salivary Gland Infections: Symptoms and Care
By Dr. Raj Bhayani, ENT Specialist
ENT doctor examining salivary gland infection swollen gland patient
A tender, swollen area near the jaw or in front of the ear, sometimes with a distinctly unpleasant taste in the mouth, is a fairly classic sign of a salivary gland infection, medically known as sialadenitis. It's uncomfortable, sometimes alarming looking, and understandably makes people want answers quickly.
As an ENT, salivary gland infections are a condition I see fairly regularly, and the good news is that most cases respond well to appropriate care, whether that's home management or, when needed, antibiotics or a more involved procedure.
In this guide, I'll explain what salivary gland infections are, the symptoms to watch for, why they occur, effective home care, and when antibiotics or surgery become necessary.
What Salivary Gland Infections Are
Salivary gland infections occur when bacteria, or less commonly a virus, infect one of the major salivary glands, most often the parotid gland (located in front of the ear) or the submandibular gland (located beneath the jaw). This results in a genuinely infected salivary gland, with the classic signs of infection: pain, swelling, warmth, and sometimes visible redness over the affected area.
These glands are responsible for producing saliva, which plays an important role in digestion, oral comfort, and helping protect the mouth from bacteria under normal circumstances. When saliva flow through a gland becomes reduced or blocked, it creates conditions where bacteria can multiply and cause an infection.
Acute vs Chronic Sialadenitis
Salivary gland infections can be acute, developing suddenly and resolving with treatment, or chronic, involving repeated episodes over time, often related to an underlying issue like a salivary stone or a narrowing of the gland's duct that predisposes it to recurring infection.
Symptoms
The symptoms of a salivary gland infection are usually fairly localized and distinctive.
Common Signs of a Swollen Gland in the Mouth or Jaw Area
Pain and tenderness over the affected gland, typically near the jaw or in front of the ear
Visible swelling, sometimes significant, over the gland
Warmth and redness of the skin overlying the infected gland
A foul or unusual taste in the mouth, particularly if pus is draining from the gland's duct opening
Pain that worsens with eating, since chewing stimulates saliva production and flow through the affected gland
Signs of a More Significant Infection
Fever
Difficulty opening the mouth fully
Spreading redness or swelling beyond the immediate area of the gland
Feeling generally unwell alongside the localized symptoms
Why They Occur
Several factors can contribute to reduced saliva flow or gland blockage, creating the conditions for infection to develop.
Dehydration
Reduced overall fluid intake leads to lower saliva production, which can allow bacteria to accumulate within the gland rather than being flushed out through normal saliva flow.
Salivary Gland Stones
A stone forming within the gland's duct, from the buildup of minerals in saliva, can partially or fully block saliva flow, creating a direct setup for infection to develop behind the blockage.
Reduced Saliva Production
Certain medications, particularly those with a drying effect, along with some medical conditions, can reduce saliva production and increase the risk of gland infection.
Poor Oral Hygiene
Bacteria from the mouth can travel up the gland's duct more easily when oral hygiene is poor, increasing the risk of infection, particularly in an already vulnerable gland.
Post-Surgical or Debilitated States
People recovering from surgery, particularly if they've been less able to eat, drink, or maintain oral hygiene normally during recovery, have a somewhat higher risk of developing a salivary gland infection during that period.
Home Care
For milder cases, particularly early in the course of infection, several home care measures can support recovery alongside any prescribed treatment.
Supportive Measures
Staying well hydrated to support normal saliva flow
Applying warm compresses to the affected area to help with discomfort and encourage drainage
Gently massaging the gland toward its duct opening, which can help promote drainage, particularly if a stone or thick secretions are contributing
Using sialogogues, substances like sour candy or citrus that stimulate saliva flow, which can help flush the gland
Maintaining good oral hygiene throughout the infection
When Home Care Is Appropriate
Home care measures are generally appropriate for mild symptoms without fever or significant swelling, but they should be paired with prompt medical evaluation if symptoms don't clearly improve within a day or two, or if they worsen at any point.
When Antibiotics or Surgery Are Needed
While some milder cases improve with home care and hydration alone, many salivary gland infections require more direct treatment.
Antibiotics
Because most salivary gland infections are bacterial, antibiotics are commonly prescribed, particularly for infections with more significant swelling, pain, or systemic symptoms like fever. Choosing an antibiotic effective against the bacteria typically responsible for these infections is an important part of appropriate treatment.
Addressing an Underlying Stone
If a salivary stone is identified as the underlying cause, particularly in cases of recurring infection, removing the stone, sometimes through a minimally invasive procedure called sialendoscopy, addresses the root cause and helps prevent future episodes.
Surgical Drainage
In more severe cases where an abscess (a localized collection of pus) has formed within the gland, surgical drainage may be necessary alongside antibiotics to fully resolve the infection.
Managing Chronic or Recurrent Cases
For patients with repeated salivary gland infections, a more thorough evaluation is often needed to identify and address the underlying predisposing factor, whether that's a stone, a duct narrowing, or another contributing condition, to break the cycle of recurrence.
Salivary gland infection treatment and sialendoscopy procedure
Conclusion
Salivary gland infections are uncomfortable but generally very treatable, whether through supportive home care, antibiotics, or, for underlying causes like a stone, a more targeted procedure. Recognizing the classic pattern, pain and swelling near the jaw or in front of the ear, sometimes with an unusual taste in the mouth, helps you seek appropriate care sooner rather than waiting through worsening discomfort.
If you're experiencing symptoms of a salivary gland infection, particularly with fever, significant swelling, or symptoms that aren't improving with basic home care, it's worth having it evaluated by an ENT. And if you've had recurring episodes, identifying and addressing the underlying cause can help prevent future infections from developing.
FAQs About Salivary Gland Infections
1. What is sialadenitis? Sialadenitis is the medical term for a salivary gland infection, most commonly affecting the parotid gland near the ear or the submandibular gland beneath the jaw.
2. What are the symptoms of a salivary gland infection? Common symptoms include pain, swelling, warmth, and redness over the affected gland, along with a foul taste in the mouth and pain that worsens with eating.
3. What causes salivary gland infections? Common causes include dehydration, salivary gland stones blocking saliva flow, reduced saliva production from certain medications, poor oral hygiene, and recovery from surgery.
4. Can salivary gland infections be treated at home? Mild cases may improve with hydration, warm compresses, gentle gland massage, and substances that stimulate saliva flow, though prompt evaluation is important if symptoms don't improve or worsen.
5. Do salivary gland infections always require antibiotics? Many cases do, particularly with more significant swelling, pain, or fever, since most salivary gland infections are bacterial in nature.
6. What is a salivary gland stone, and how does it relate to infection? A salivary gland stone is a mineral buildup that can block saliva flow within the gland's duct, creating conditions that predispose the gland to infection.
7. What is sialendoscopy? Sialendoscopy is a minimally invasive procedure used to directly visualize and treat issues within the salivary gland duct, such as removing a stone contributing to recurring infections.
8. When does a salivary gland infection require surgery? Surgery, typically drainage, is needed if an abscess has formed within the gland, and a procedure to remove an underlying stone may be recommended for recurring infections.
9. Why do some people get recurring salivary gland infections? Recurrence is often linked to an underlying predisposing factor, such as a salivary stone or a narrowing of the gland's duct, which needs to be identified and addressed to prevent future episodes.
10. When should I see an ENT for a swollen salivary gland? If you have significant swelling, fever, pain that isn't improving with basic home care, or recurring episodes, it's time to schedule an ENT evaluation.
Dr. Raj Bhayani is an ENT specialist focused on salivary gland conditions. This article is for educational purposes and does not replace a personal medical evaluation. If you're experiencing symptoms of a salivary gland infection, please consult a qualified ENT specialist.
