Dear Alice,. What’s the difference between a canker sore and a cold sore? In your response to Oral sex with canker sores, you replied that it was safe and could not cause an infection of the genital region. Canker sores and cold sores are common disorders of the mouth, irritating millions of Americans. Although many people use the terms canker sore and cold sore synonymously, they are different conditions. The underlying trigger may be a virus or an allergic reaction. Another name for aphthous ulcer is canker sore. Treat ulcers caused by the herpes simplex virus with anti-viral drugs. Treat oral thrush with anti-fungal drugs.
Mouth ulcers are very common, occurring in association with many diseases and by many different mechanisms, but usually there is no serious underlying cause. The most common are herpes simplex virus (herpes labialis, primary herpetic gingivostomatitis), varicella zoster (chicken pox, shingles), and coxsackie A virus (hand, foot and mouth disease). Emotional stress, menstruation or injury to the mouth are common triggers for simple canker sores. Certain foods such as citrus or acidic foods may trigger a canker sore or make one more uncomfortable. Other causes of mouth ulcers should be considered, including herpes simplex or infection with Vincents organisms, herpangina, recurrent erythema multiforme, and fixed drug eruption.
Understanding and treating canker sores (aphthous ulcers). Canker sores, otherwise known as mouth ulcers or aphthous ulcers, are disruptions of oral mucosa and can be extremely painful. Canker sores form on the inside of the lips, cheeks or under the tongue. The most common condition, which I will discuss here, is oral herpes, which is commonly mistaken for canker or cold sores. However, it’s important to understand that there’s a distinct and clear difference between these two conditions, or else you run the risk of selecting the wrong treatment method.
No, canker sores and cold sores (or fever blisters) are two different things. Canker sores are not contagious, and they appear in the soft tissues of the mouth. Some conditions that can mimic canker sores include traumatic injury, autoimmune conditions, viral infections (such as herpes simplex and herpes zoster shingles ), and most importantly, oral cancer.