Thank you for your time and advice. I will go see a doctor first before anything. :)
Hello,
You can use Neosporin lip treatment which is specifically for lips. Consult a doctor and get it prescribed. It is basically used for chapped lips and cold sores.
It is very difficult to precisely confirm a diagnosis without examination and investigations and the answer is based on the medical information provided. For exact diagnosis, you are requested to consult your doctor. I sincerely hope that helps. Take care and please do keep me posted on how you are doing.