dry lips 24/7 help

[rracheeell01]

my lips are soo dry, I tried the sugar by fresh chapstick I tried the blistex all of them and a lot more. I exfoliate my lips once or twice a week and I put serum on them. I don't know what to do.. since I live in Canada ( Quebec) we don't have all the same products that the USA have. it's kinda urgent I want my lips to be beautiful in two weeks because I'll be on tv and it's either really cold here or hot and my lips can't deal with that. I would want something not too expensive that I can find at drugstores or like Wal-Mart thank you!!

[rracheeell01]

Thank you so much!