4 doctors weighed in:
Is it normal to have mouth ulcer outbreak after kissing guy with cold sores ?
4 doctors weighed in

Dr. Gregory Mosolf
Pediatrics
3 doctors agree
In brief: Yes
Cold sores are transmitted from person to person by kissing.
Mouth ulcers are caused by herpes simplex virus 1 which also causes cold sores.

In brief: Yes
Cold sores are transmitted from person to person by kissing.
Mouth ulcers are caused by herpes simplex virus 1 which also causes cold sores.
Dr. Gregory Mosolf
Dr. Gregory Mosolf
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