I have been having seriously burning and itchy lips for the past 3 weeks. I went to the pharmacy. The pharmacist said it was cold sores, and recommend me the Zovirax cream. I used it for a few days and the the painful feeling was somewhat suppressed. However, after stopping using the cream, my lips were cracked and dry and tingling. I tried different lip balms, such as Carmex and Burt's Bee, to heal them, but then the burning and itchiness came back! I then start taking lypsine and applying the zovirax cream. They seemed to be working and now I don't feel the burning and itchy sense,just occasional tingle, but my lips are very very dry and cracked. Should I use the lip balms again?