Mouth Sores: What You Need to Know

Mouth sores can be a real pain—literally. Whether it’s a canker sore or a cold sore, these little ulcers or blisters inside your mouth can make eating, talking, and even smiling uncomfortable. But what exactly causes them, and how can you deal with the discomfort? Let’s break down what mouth sores are and how you can find relief fast.

The term “mouth sores” covers a few different types of painful spots in or around your mouth. The most common are canker sores, which are small, shallow ulcers with a white or yellow center surrounded by red. These aren’t contagious, but they can pop up because of stress, minor mouth injuries, hormonal changes, or certain vitamin deficiencies like B12 or iron. Cold sores, on the other hand, usually appear as clusters of blisters on or near the lips and are caused by the herpes simplex virus. These ones are contagious and tend to burn or itch before they form.

Common Causes and How to Avoid Them

If you often get mouth sores, it helps to watch out for triggers. Rough or sharp foods like chips can scratch your mouth lining, leading to sores. Acidic foods such as citrus fruits might irritate existing sores or trigger new ones. Stress and lack of sleep don’t help either—they can weaken your immune system, making your mouth more vulnerable. Good oral hygiene matters too; brushing gently and avoiding harsh mouthwashes can reduce irritation.

Dealing with mouth sores often means managing the pain while they heal, which usually takes one to two weeks. Over-the-counter gels or patches designed for mouth ulcers can numb pain and protect sores from irritation caused by eating or talking. Rinsing your mouth with salt water or a mild baking soda rinse can help reduce inflammation. If you get frequent or very painful sores, seeing a healthcare provider makes sense—they can check for underlying issues like infections or nutrient deficiencies and suggest stronger treatments.

When to Seek Medical Help

Most mouth sores clear up on their own, but if they last more than two weeks, grow larger, or come with other symptoms like fever or difficulty swallowing, it’s time to get checked out. Persistent sores could be signs of other health problems that need attention. Also, if you notice sores spreading or appearing along with unusual skin changes, that’s worth mentioning to a doctor.

In short, mouth sores are common and usually manageable with good care and some patience. Watching what you eat, keeping your mouth clean, and using pain-relief products can make a big difference. Don’t ignore stubborn sores, though, since getting the right diagnosis early can keep you feeling your best.