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.
Use the incorrect symbol, and one could get the wrong idea! We canât be 100% sure why or how XOXO ultimately came to mean âhugs and kissesâ, but we do at least have a reasonably good theory to work with on the âXâ part. Signing letters with an âXâ dates back to the Middle Ages.