Canker sores often seem to pop up out of nowhere and, once you have them, they’re often painfully hard to ignore — especially when you try to eat or even talk. So what, exactly, are canker sores? They ...

Blisters on the lip can be due to cold sores, sunburn blisters, canker sores, and more. Treatment can depend on the underlying cause. There are many reasons why lip blisters develop, including ...

Scientists report that they have developed a method for the effective healing of, and relief of pain associated with, canker sores. Scientists report that they have developed a method for the ...

Waking up with a spot on your lip is never a good feeling. Often cold sores or pimples are to blame, though telling the difference isn't always easy. They can look similar on the surface, but their ...

Dear Dr. Gott: In a past column, you responded to a reader whose daughter suffered from constant mouth sores. You told her to switch toothpastes and use Orajel and similar products. I agree with your ...

Many mouth ulcers clear up in a matter of days, but if one lingers for many days then the problem could be more than just an ...

Sometimes your baby can get blisters on their lips. This can be caused by simple things like learning how to breastfeed or it can be a sign of an infection. There are things you can do to make sure ...

Anyone who has suffered the pain and embarrassment of a cold sore has probably been through the misery many times and knows the symptoms all too well: that tingly, itchy, hot sensation at the edge of ...