What does this mean?
Pus seeping into the mouth from a periodontal pocket or an abscess tract leaves a distinct taste. A persistent taste means the source is draining continuously, which can coincide with the pain easing and is misleading.
Not every bad taste is infection. Dry mouth, reflux, some medications and sinusitis also alter taste. What separates them is whether gum findings accompany it and whether it concentrates in one area.
The two usual dental causes of a persistent bad taste are a draining abscess and deep periodontal pockets.
Likely causes
What helps at home?
- Clean the back of the tongue daily; taste and odour often come from there
- A warm salt-water rinse gives temporary relief
- Try to notice which area the taste comes from; that detail speeds up the examination
- Swelling, fever or a loose tooth alongside the taste
- A white bump or a draining point on the gum
- A bad taste appearing just as the pain stops
- Difficulty swallowing
Frequently asked questions
- The pain stopped but the taste continues; is the problem over?
- No. That combination usually means the abscess has found a route and is draining. The pressure drops so the pain eases, while the source stays put.
- Is a mouthwash enough?
- It masks the taste for a while. Until the source is cleaned it comes back.
This content is for general information and does not replace an in-person examination. Symptoms overlap between conditions, and a diagnosis can only be made clinically.