try these things everyday for 2 weeks and let me know if it helps you anyone. rinse your mouth with Listerine mouthwash and soak it on your lips do this 2 or 3 times a day. get some redwine and soak it on your lips for 5 minutes once a day. redwine is supposed to kill all forms of bacteria. then get 1 cup of hot water and mix in 1 table spoon of salt and mix it up then soak it on your lips while swishing it for 5 minutes. do that once or twice a day. tell me if it works. im thinking its bacteria infection and these 3 things should kill off the bacteria. there is also other things that kill bacteria you can research on your own such as rosemary oil, thyme oil and others. vinegar and water also supposed to kill bacteria but I wouldn't know how to tell you to use it.