A 48-year-old member asked:
how do you get cold sores inside your mouth? what is the cause?
1 doctor answer • 3 doctors weighed in
Dermatology 19 years experience
HSV: Hsv causes cold sores which are usually outside of the oral cavity. Perhaps you are referring to a canker sore.
A 25-year-old member asked:
Can you get cold sores from giving mouth to mouth to someone who has cold sores?
2 doctor answers • 5 doctors weighed in
Emergency Medicine 40 years experience
Yes: Herpes virus is usually shed when a visible sore is present; however, the virus can be present even without a sore showing. You usually need to have a portal of entry for the virus to infect you (cut, dry lips, etc). But is you have been exposed before and have anti bodies against the herpes virus you have be able to fight it off. Wearing lip stick, lip gloss or chapstick will help protect you.
A 33-year-old member asked:
Can you get symptoms of cold sores inside the mouth instead of outside?
2 doctor answers • 10 doctors weighed in
Pediatrics 54 years experience
YES: Cold sores are painful lesions inside the mouth caused by viral infections.
A 45-year-old member asked:
Is this cracking at the corners of my mouth a symptom of cold sores?
2 doctor answers • 3 doctors weighed in
Pediatrics 34 years experience
Probably not: Cold sores--or herpes simplex reactivation--usually will present as an area at the lip red border or just beyond, that initially may sting or burn and then goes on to develop a cluster of tiny blisters. These may coalesce into one or more larger blisters and finally open. Cracking at the corners of the mouth is often from licking due to dryness (ie allergies).
A 32-year-old member asked:
What causes cold sores in the corner of my mouth?
4 doctor answers • 7 doctors weighed in
A Verified Doctor answered
Herpes virus: Can cause fever blisters. Cold sore at the corner of mouth could be due to dry air, .
A 39-year-old member asked:
What usually causes cold sores in the mouth?
1 doctor answer • 1 doctor weighed in
Dentistry 25 years experience
Cold sores: Most cold sores are called aphthous ulcers. They are caused by a virus that the majority of the population has. There is no cure, it usually lays dormant in the nerve endings and erupts in an incident after stress, trauma or external stimulants. They usually last 7-10 days and there are meds that can lessen the duration and intensity. Herpes is another possibility. See a dentist to have evaluated.
Last updated Aug 26, 2013
Connect with a U.S. board-certified doctor by text or video anytime, anywhere.
$15 per month
Content on HealthTap (including answers) should not be used for medical advice, diagnosis, or treatment, and interactions on HealthTap do not create a doctor-patient relationship. Never disregard or delay professional medical advice in person because of anything on HealthTap. Call your doctor or 911 if you think you may have a medical emergency.