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.
XD has a similar meaning to LOL, or âlaughing out loud,â in Internet slang. To see the face created by the letters XD, one can turn her head anticlockwise. Using a colon next to a capital D or typing X-D during an Internet chat also means the person is laughing crazily. Learn more about Mobile