It first appeared 6 days ago when all of a sudden I felt like a burning sensation and my lip felt
swollen. Since then I have been putting cold
sore medicine, thinking it could possibly be one starting out. I have never had one before, but my sister-in law and friend said they start out in a tingling or burning or itching sensation. So, upset, but worried, I continued the ointment. Six days later, it looks exactly the same maybe a little dry but the same.