dental hygiene

How Long Do Ulcers Last?

3 min read

Mouth ulcers have a funny way of making one tiny spot feel much bigger than it is. You notice them every time you eat. Every sip of something hot reminds you they’re still there. Then you start wondering if this is normal or if something’s wrong.

Most Mouth Ulcers Don’t Stick Around for Long

The good news is that the average mouth ulcer usually lasts between 7 and 14 days. That’s the pattern for the small, common ulcers most people get from stress, a tiny bite inside the cheek, or simple irritation.

Around the first couple of days, the sore often feels worse than it looks. After that, the pain slowly fades. The white or yellow center starts shrinking, and before you know it, you stop noticing it every few minutes. It feels quicker once the pain eases, even if the ulcer is still healing.

Why Some Last Longer

But not every ulcer follows the same schedule. Larger ulcers can hang around for several weeks. They also tend to hurt more and may leave a small scar after they heal.

If an ulcer hasn’t improved after two weeks, don’t brush it off. That’s usually the point where a dentist or doctor should take a closer look. I think too many people wait because they keep hoping it’ll disappear on its own, and sometimes that’s simply the wrong call.

A Few Things Can Slow Healing Down

Healing depends on what’s causing the ulcer in the first place. If the sore keeps rubbing against a broken tooth or a sharp edge on a filling, your mouth doesn’t get much of a chance to repair itself.

• Stress hangs around. The ulcer often does too, and that’s frustrating because you can’t exactly switch stress off before dinner.

• A lack of certain vitamins can make healing drag on. Your body needs the basics before it gets moving again.

• If spicy food keeps hitting the sore, it’ll complain every single time. Most people figure that out after one painful meal.

• Some health conditions lead to ulcers that return again and again, which feels far more annoying than the sore itself.

Helping an Ulcer Heal Faster

You can’t magically erase a mouth ulcer overnight. Anyone promising that is overselling it.

So give your mouth a bit of a break. Drink plenty of water. Choose softer food if chewing hurts. A warm saltwater rinse once or twice a day often makes the area feel calmer, and over-the-counter ulcer gels can reduce the discomfort while everything heals.

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