Canker sore. In some cases, the exact cause of a canker sore is unknown, but trauma or injury to the mouth or oral soft tissues may be the culprit. Other possible causes are food sensitivities, spicy, salty or acidic foods, vitamin B deficiency, hormonal shifts and stress. Cold sore.
What does xoxo mean? Hugs and kisses or xoxo is a term used for expressing affection or good friendship at the end of a written letter, email or SMS text message.
If XOXO means hugs and kisses does x means hug? for xoxo z=kisses and o=hugs and done say its not bc it is. x looks like a target on your lips or what ever. o looks like arms around a person.or xoxo z=kisses and o=hugs and done say its not bc it is. x looks like a target on your lips or what ever. o looks like arms around a person.