Dental emergency · Valleyfield
Pimple or bump on the gum in Valleyfield: is it an abscess?
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01In brief
Pimple on the gum: is it an abscess?
Get it seen quickly
A small white or yellowish pimple on the gum, near a tooth, that sometimes lets out a bad-tasting fluid, is often a fistula: the path an infection of the tooth or gum uses to drain. It may not hurt, but the infection is still active. Book an appointment quickly at the Go Dentiste clinic in Valleyfield at 514-533-3368; if your cheek swells or you have a fever, ask to be seen the same day, subject to availability.
- ClinicGo Dentiste Valleyfield
785 Monseigneur-Langlois Boulevard, Salaberry-de-Valleyfield - Phone514-533-3368
- HoursOpen 7 days a week: Mon 8 a.m.–5 p.m., Tue 8 a.m.–7 p.m., Wed–Thu 8 a.m.–5 p.m., Fri–Sun 9 a.m.–2 p.m.
- OnlineBooking 24/7
- Time to treatmentSame day, subject to availability
- New patientsWelcome, no referral needed
02What to do now
What to do in the meantime
- Don’t pop the pimpleSqueezing it can irritate the gum and doesn’t fix the cause.
- Rinse with lukewarm salt waterSeveral times a day, especially after meals.
- Brush gentlyKeep the area clean without scrubbing hard.
- Book an appointmentAt 514-533-3368 or online, 24/7, even if it doesn’t hurt.
What to avoid
- Popping or squeezing the pimple
- Waiting because it doesn’t hurt
- Taking an old antibiotic you found at home
- Putting alcohol or an irritating product on the gum
Warning signs: Call 911 or go to the hospital emergency room (Hôpital du Suroît, in Valleyfield) if swelling spreads to the eye, under the jaw or to the neck, if you have trouble breathing, swallowing or opening your mouth, or if you have a high fever.
New patients · First visit
Your complete checkup, in a single visit.
A 45- to 75-minute visit
- Complete exam service and low-dose X-rays
- Cleaning service, the same day when possible
- Written treatment plan, every cost explained
- Coming as a family? Grouped appointments on request: a single trip
Vaudreuil-Dorion just opened: openings for new patients
03Is it urgent?
Hospital, clinic or appointment: how to decide
- Hospital or 911Swelling spreading to the eye or neck, trouble breathing, swallowing or opening your mouth, high fever: hospital emergency room or 911.
- Clinic, todayPimple with pain, swollen gum or a bad taste: call to be seen quickly, subject to availability.
- In the next few daysSmall pimple with no pain for a few days: book an appointment within the week; the cause needs to be found.
04At the Valleyfield clinic
How the cause of the pimple is found
The dentist examines the gum and nearby teeth and takes an X-ray, sometimes with a very fine cone placed in the fistula to trace its path to the source of the infection.
The cause is most often a tooth whose nerve has died, treated with a root canal or an extraction, or an infected gum pocket, treated with a deep cleaning.
Directions to the Valleyfield clinic
Opening hours
Valleyfield
| MondayMon | 8 a.m. – 5 p.m. |
|---|---|
| TuesdayTue | 8 a.m. – 7 p.m. |
| WednesdayWed | 8 a.m. – 5 p.m. |
| ThursdayThu | 8 a.m. – 5 p.m. |
| FridayFri | 9 a.m. – 2 p.m. |
| SaturdaySat | 9 a.m. – 2 p.m. |
| SundaySun | 9 a.m. – 2 p.m. |
05Possible treatments
Services that may be offered to you in Valleyfield
The treatment depends on the exam: the dentist explains the options and their costs before starting.
06FAQ
Frequently asked questions: pimple on the gum
How can I tell a canker sore from an abscess?
A canker sore is a small, painful sore, white with a red border, often on the cheek or lip, that heals in one to two weeks. An abscess pimple is more like a small bump on the gum, near a tooth, that can let out pus. A sore that does not heal within two weeks should be examined.
The pimple went away: is the problem solved?
Not necessarily. A fistula can close and then come back as long as the infection is not treated.
Why doesn’t it hurt?
Because the pus drains through the fistula, so pressure doesn’t build up. The infection can still damage the bone around the tooth.
Is an antibiotic enough?
It can calm the infection for a while, but the source stays in the tooth or the gum. The dentist determines the treatment after the exam.
07See also
Other dental emergencies in Valleyfield
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A dental emergency in Valleyfield? Call or book.
Same-day emergencies (subject to availability), 7 days a week at the Valleyfield clinic. New patients welcome, online booking 24/7.
Content prepared by the Go Dentiste team (Dr Dominic Morel-Maynard, general dentist and owner). Last updated: October 11, 2026. General information for guidance only: only an in-clinic exam can establish a diagnosis and a treatment plan suited to your situation. For health advice 24/7, call Info-Santé 811; in a serious emergency, call 911. Services are offered in French and English.