First infection may be inside the mouth, but cold sores generally appear outside the mouth on the lips. They occur only inside the mouth, on the tongue or the insides of the cheeks, lips or throat. Despite their name, cold sores also known as fever blisters are not caused by the common cold. Cold sores typically result from a viral infection called herpes simplex virus HSV. Cold sore blisters can occur on many different parts of the body but are most common on or around the lips, cheeks, or nose and also on rare occasions in the eye. Recurrences are less severe and the individual may notice a burning or tingling sensation hours before a cluster of blisters appear.
The last two names are particularly confusing, as chancre rhymes with canker. Sometimes people aren't certain exactly what their doctor has said. You should always ask your doctor to clarify, but understanding the differences between the three is also helpful. The sores found on the face and mouth are the ones that are usually confused by name. Although chancres can occur on the genitals, cold sores and canker sores are restricted to the face.
As far as red sores on or near your mouth go, zero is the number you want to have. Alas, those little or uh, not so little red bumps seem to pop up whenever they damn well please and wreak havoc on your life. But is it a cold sore which tbh, are super common , or a canker sore that's wrecking your lipstick game A cold sore is an infection caused by the herpes simplex virus HSV , and appear as fluid-filled blisters that develop on the lip or around the mouth, according to the American Academy of Dermatology AAD.