This past sunday I woke up and noticed that my bottom lip was really swollen and I had a cold sore in the middle of my lip. I picked up some abreva and I have been applying in to my lip every hr. Today is day 4 and I have this HUGE yellow scab in the middle of my lip that is really embarrassing. I dont want to even leave my home. It started scabbing up yesterday but I made the terrible mistake of putting a cotton ball on my lip with a bandaid on top of it. I guess I thought that it would help it heal faster. Well after realizing this was a bad move I took the bandaid and cotton ball off around 4pm. I began applying the abreva every hr again and the scab started coming back. Now the scab is hard, and yellow. How long does the scabbing phase usually last? Also do I keep applying the abreva to my lip during the scabbing phase?